This character is a Other 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 not mirrored. U+1F582 offers a line break opportunity at its position, except in some numeric contexts.
The Wikipedia has the following information about this codepoint:
An envelope is a common packaging item, usually made of thin, flat material. It is designed to contain a flat object, such as a letter or card.
Traditional envelopes are made from sheets of paper cut to one of three shapes: a rhombus, a short-arm cross or a kite. These shapes allow the envelope structure to be made by folding the sheet sides around a central rectangular area. In this manner, a rectangle-faced enclosure is formed with an arrangement of four flaps on the reverse side.
Representations
System
Representation (click value to copy)
NΒΊ
128386
UTF-8
F0 9F 96 82
UTF-16
D8 3D DD 82
UTF-32
00 01 F5 82
URL-Quoted
%F0%9F%96%82
HTML hex reference
🖂
Wrong windows-1252 Mojibake
Γ°ΕΈββ
Encoding: GB18030 (hex bytes)
94 39 F0 30
RFC 5137
\u'1F582'
Bash and Zsh inside echo -e
\U0001F582
C and C++
\U0001F582
C#
\U0001F582
CSS
\01F582
Excel
=UNICHAR(128386)
Go
\U0001F582
JavaScript
\uD83D\uDD82
Modern JavaScript since ES6
\u{1f582}
JSON
\uD83D\uDD82
Java
\uD83D\uDD82
Lua
\u{1F582}
Matlab
char(128386)
Perl
"\x{1F582}"
PHP
\u{1f582}
PostgreSQL
U&'\+01F582'
PowerShell
`u{1F582}
Python
\U0001F582
Ruby
\u{1f582}
Rust
\u{1f582}
Click the star button next to each label to set this representation as favorite or remove it from the favorites. Favorites will be shown initially. (Favorites are stored locally on your computer and never sent over the internet.)