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+1F0D1 offers a line break opportunity at its position, except in some numeric contexts.
The Wikipedia has the following information about this codepoint:
An ace is a playing card, die or domino with a single pip. In the standard French deck, an ace has a single suit symbol (a heart, diamond, spade, or a club) located in the middle of the card, sometimes large and decorated, especially in the case of the ace of spades. This embellishment on the ace of spades started when King James VI of Scotland and I of England required an insignia of the printing house to be printed on the ace of spades. This insignia was necessary for identifying the printing house and stamping it as having paid the new stamp tax. Although this requirement was abolished in 1960, the tradition has been kept by many card makers. In other countries the stamp and embellishments are usually found on ace cards; clubs in France, diamonds in Russia, and hearts in Genoa because they have the most blank space.
Representations
System
Representation (click value to copy)
NΒΊ
127185
UTF-8
F0 9F 83 91
UTF-16
D8 3C DC D1
UTF-32
00 01 F0 D1
URL-Quoted
%F0%9F%83%91
HTML hex reference
🃑
Wrong windows-1252 Mojibake
Γ°ΕΈΖβ
Encoding: GB18030 (hex bytes)
94 38 F5 39
RFC 5137
\u'1F0D1'
Bash and Zsh inside echo -e
\U0001F0D1
C and C++
\U0001F0D1
C#
\U0001F0D1
CSS
\01F0D1
Excel
=UNICHAR(127185)
Go
\U0001F0D1
JavaScript
\uD83C\uDCD1
Modern JavaScript since ES6
\u{1f0d1}
JSON
\uD83C\uDCD1
Java
\uD83C\uDCD1
Lua
\u{1F0D1}
Matlab
char(127185)
Perl
"\x{1F0D1}"
PHP
\u{1f0d1}
PostgreSQL
U&'\+01F0D1'
PowerShell
`u{1F0D1}
Python
\U0001F0D1
Ruby
\u{1f0d1}
Rust
\u{1f0d1}
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