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+122FE forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
Cuneiform TI or TΓL (Borger 2003 nr.; U+122FE πΎ) has the main meaning of "life" when used ideographically. The written sign developed from the drawing of an arrow, since the words meaning "arrow" and "life" were pronounced similarly in the Sumerian language.
In Akkadian orthography, the sign has the syllabic values di or αΉi, in Hittite ti, di or te.
Representations
System
Representation (click value to copy)
NΒΊ
74494
UTF-8
F0 92 8B BE
UTF-16
D8 08 DE FE
UTF-32
00 01 22 FE
URL-Quoted
%F0%92%8B%BE
HTML hex reference
𒋾
Wrong windows-1252 Mojibake
Γ°ββΉΒΎ
Encoding: GB18030 (hex bytes)
90 37 8E 38
RFC 5137
\u'122FE'
Bash and Zsh inside echo -e
\U000122FE
C and C++
\U000122FE
C#
\U000122FE
CSS
\0122FE
Excel
=UNICHAR(74494)
Go
\U000122FE
JavaScript
\uD808\uDEFE
Modern JavaScript since ES6
\u{122fe}
JSON
\uD808\uDEFE
Java
\uD808\uDEFE
Lua
\u{122FE}
Matlab
char(74494)
Perl
"\x{122FE}"
PHP
\u{122fe}
PostgreSQL
U&'\+0122FE'
PowerShell
`u{122FE}
Python
\U000122FE
Ruby
\u{122fe}
Rust
\u{122fe}
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