This character is a Other Letter and is mainly used in the Cuneiform script.
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+121B7 forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
The cuneiform sign for la (π·), and also in the Epic of Gilgamesh the sumerogram LA-(capital letter (majuscule), is a common-use sign for the Epic and for the 1350 BC Amarna letters. It is used for syllabic la, and also for alphabetic l, or a.
Representations
System
Representation (click value to copy)
NΒΊ
74167
UTF-8
F0 92 86 B7
UTF-16
D8 08 DD B7
UTF-32
00 01 21 B7
URL-Quoted
%F0%92%86%B7
HTML hex reference
𒆷
Wrong windows-1252 Mojibake
Γ°ββ Β·
Encoding: GB18030 (hex bytes)
90 36 EC 31
RFC 5137
\u'121B7'
Bash and Zsh inside echo -e
\U000121B7
C and C++
\U000121B7
C#
\U000121B7
CSS
\0121B7
Excel
=UNICHAR(74167)
Go
\U000121B7
JavaScript
\uD808\uDDB7
Modern JavaScript since ES6
\u{121b7}
JSON
\uD808\uDDB7
Java
\uD808\uDDB7
Lua
\u{121B7}
Matlab
char(74167)
Perl
"\x{121B7}"
PHP
\u{121b7}
PostgreSQL
U&'\+0121B7'
PowerShell
`u{121B7}
Python
\U000121B7
Ruby
\u{121b7}
Rust
\u{121b7}
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