This character is a Math Symbol and is commonly used, that is, in no specific script.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it acts as Other Neutral. When changing direction it is mirrored. The word that U+225F forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
The question mark? (also known as interrogation point, query, or eroteme in journalism) is a punctuation mark that indicates a question or interrogative clause or phrase in many languages.
Representations
System
Representation (click value to copy)
Nº
8799
UTF-8
E2 89 9F
UTF-16
22 5F
UTF-32
00 00 22 5F
URL-Quoted
%E2%89%9F
HTML hex reference
≟
Wrong windows-1252 Mojibake
≟
HTML named entity
≟
HTML named entity
≟
Encoding: GB18030 (hex bytes)
81 36 D8 36
LATEX
\ElsevierGlyph{225F}
RFC 5137
\u'225F'
Bash and Zsh inside echo -e
\u225F
C and C++
\u225F
C#
\u225F
CSS
\00225F
Excel
=UNICHAR(8799)
Go
\u225F
JavaScript
\u225F
Modern JavaScript since ES6
\u{225f}
JSON
\u225F
Java
\u225F
Lua
\u{225F}
Matlab
char(8799)
Perl
"\x{225F}"
PHP
\u{225f}
PostgreSQL
U&'\225F'
PowerShell
`u{225F}
Python
\u225F
Ruby
\u{225f}
Rust
\u{225f}
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