Source: Noto Sans Symbols 2

U+1D2D2 Kaktovik Numeral Eighteen

U+1D2D2 was added in Unicode version 15.0 in 2022. It belongs to the block U+1D2C0 to U+1D2DF Kaktovik Numerals in the U+10000 to U+1FFFF Supplementary Multilingual Plane.

This character is a Other Number and is commonly used, that is, in no specific script. The codepoint has the numeric value 18.

The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it is written from left to right. When changing direction it is not mirrored. The word that U+1D2D2 forms with similar adjacent characters prevents a line break inside it.

The Wikipedia has the following information about this codepoint:

The Kaktovik numerals or Kaktovik Iñupiaq numerals are a base-20 system of numerical digits created by Alaskan Iñupiat. They are visually iconic, with shapes that indicate the number being represented.
The Iñupiaq language has a base-20 numeral system, as do the other Eskimo–Aleut languages of Alaska and Canada (and formerly Greenland). Arabic numerals, which were designed for a base-10 system, are inadequate for Iñupiaq and other Inuit languages. To remedy this problem, students in Kaktovik, Alaska, invented a base-20 numeral notation in 1994, which has spread among the Alaskan Iñupiat and has been considered for use in Canada.

Representations

System	Representation (click value to copy)
Nº	119506
UTF-8	F0 9D 8B 92
UTF-16	D8 34 DE D2
UTF-32	00 01 D2 D2
URL-Quoted	%F0%9D%8B%92
HTML hex reference	𝋒
Wrong windows-1252 Mojibake	ð‹’
Encoding: GB18030 (hex bytes)	94 32 EA 30
RFC 5137	\u'1D2D2'
Bash and Zsh inside `echo -e`	\U0001D2D2
C and C++	\U0001D2D2
C#	\U0001D2D2
CSS	\01D2D2
Excel	=UNICHAR(119506)
Go	\U0001D2D2
JavaScript	\uD834\uDED2
Modern JavaScript since ES6	\u{1d2d2}
JSON	\uD834\uDED2
Java	\uD834\uDED2
Lua	\u{1D2D2}
Matlab	char(119506)
Perl	"\x{1D2D2}"
PHP	\u{1d2d2}
PostgreSQL	U&'\+01D2D2'
PowerShell	`u{1D2D2}
Python	\U0001D2D2
Ruby	\u{1d2d2}
Rust	\u{1d2d2}
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Elsewhere

Complete Record

Property	Value
Age (age)	15.0 (2022)
Unicode Name (na)	KAKTOVIK NUMERAL EIGHTEEN
Unicode 1 Name (na1)	—
Block (blk)	Kaktovik_Numerals
General Category (gc)	Other Number
Script (sc)	Common
Bidirectional Category (bc)	Left To Right
Combining Class (ccc)	Not Reordered
Decomposition Type (dt)	none
Decomposition Mapping (dm)	Kaktovik Numeral Eighteen
Lowercase (Lower)	✘
Simple Lowercase Mapping (slc)	Kaktovik Numeral Eighteen
Lowercase Mapping (lc)	Kaktovik Numeral Eighteen
Uppercase (Upper)	✘
Simple Uppercase Mapping (suc)	Kaktovik Numeral Eighteen
Uppercase Mapping (uc)	Kaktovik Numeral Eighteen
Simple Titlecase Mapping (stc)	Kaktovik Numeral Eighteen
Titlecase Mapping (tc)	Kaktovik Numeral Eighteen
Case Folding (cf)	Kaktovik Numeral Eighteen
ASCII Hex Digit (AHex)	✘
Alphabetic (Alpha)	✘
Bidi Control (Bidi_C)	✘
Bidi Mirrored (Bidi_M)	✘
Composition Exclusion (CE)	✘
Case Ignorable (CI)	✘
Changes When Casefolded (CWCF)	✘
Changes When Casemapped (CWCM)	✘
Changes When NFKC Casefolded (CWKCF)	✘
Changes When Lowercased (CWL)	✘
Changes When Titlecased (CWT)	✘
Changes When Uppercased (CWU)	✘
Cased (Cased)	✘
Full Composition Exclusion (Comp_Ex)	✘
Default Ignorable Code Point (DI)	✘
Dash (Dash)	✘
Deprecated (Dep)	✘
Diacritic (Dia)	✘
Emoji Modifier Base (EBase)	✘
Emoji Component (EComp)	✘
Emoji Modifier (EMod)	✘
Emoji Presentation (EPres)	✘
Emoji (Emoji)	✘
Extender (Ext)	✘
Extended Pictographic (ExtPict)	✘
FC NFKC Closure (FC_NFKC)	Kaktovik Numeral Eighteen
Grapheme Cluster Break (GCB)	Any
Grapheme Base (Gr_Base)	✔
Grapheme Extend (Gr_Ext)	✘
Grapheme Link (Gr_Link)	✘
Hex Digit (Hex)	✘
Hyphen (Hyphen)	✘
ID Continue (IDC)	✘
ID Start (IDS)	✘
IDS Binary Operator (IDSB)	✘
IDS Trinary Operator and (IDST)	✘
IDSU (IDSU)	0
ID_Compat_Math_Continue (ID_Compat_Math_Continue)	0
ID_Compat_Math_Start (ID_Compat_Math_Start)	0
Ideographic (Ideo)	✘
InCB (InCB)	None
Indic Mantra Category (InMC)	—
Indic Positional Category (InPC)	NA
Indic Syllabic Category (InSC)	Other
Jamo Short Name (JSN)	—
Join Control (Join_C)	✘
Logical Order Exception (LOE)	✘
Modifier Combining Mark (MCM)	✘
Math (Math)	✘
Noncharacter Code Point (NChar)	✘
NFC Quick Check (NFC_QC)	Yes
NFD Quick Check (NFD_QC)	Yes
NFKC Casefold (NFKC_CF)	Kaktovik Numeral Eighteen
NFKC Quick Check (NFKC_QC)	Yes
NFKC_SCF (NFKC_SCF)	Kaktovik Numeral Eighteen
NFKD Quick Check (NFKD_QC)	Yes
Other Alphabetic (OAlpha)	✘
Other Default Ignorable Code Point (ODI)	✘
Other Grapheme Extend (OGr_Ext)	✘
Other ID Continue (OIDC)	✘
Other ID Start (OIDS)	✘
Other Lowercase (OLower)	✘
Other Math (OMath)	✘
Other Uppercase (OUpper)	✘
Prepended Concatenation Mark (PCM)	✘
Pattern Syntax (Pat_Syn)	✘
Pattern White Space (Pat_WS)	✘
Quotation Mark (QMark)	✘
Regional Indicator (RI)	✘
Radical (Radical)	✘
Sentence Break (SB)	Other
Soft Dotted (SD)	✘
Sentence Terminal (STerm)	✘
Terminal Punctuation (Term)	✘
Unified Ideograph (UIdeo)	✘
Variation Selector (VS)	✘
Word Break (WB)	Other
White Space (WSpace)	✘
XID Continue (XIDC)	✘
XID Start (XIDS)	✘
Expands On NFC (XO_NFC)	✘
Expands On NFD (XO_NFD)	✘
Expands On NFKC (XO_NFKC)	✘
Expands On NFKD (XO_NFKD)	✘
Bidi Paired Bracket (bpb)	Kaktovik Numeral Eighteen
Bidi Paired Bracket Type (bpt)	None
East Asian Width (ea)	neutral
Hangul Syllable Type (hst)	Not Applicable
ISO 10646 Comment (isc)	—
Joining Group (jg)	No_Joining_Group
Joining Type (jt)	Non Joining
Line Break (lb)	Alphabetic
Numeric Type (nt)	numeric
Numeric Value (nv)	18
Simple Case Folding (scf)	Kaktovik Numeral Eighteen
Script Extension (scx)
Vertical Orientation (vo)	R