Code point
U+222D
Glyph appearance depends on your fonts.
U+222D
Sm<compat> 222B 222B 222BU+222D TRIPLE INTEGRAL is a Unicode 16.0.0 character in the Math Symbol category. It belongs to the Mathematical Operators block.
Choose the representation you need, then copy its value.
U+222D
8749
∭
∭
∭
E2 88 AD
222D
0000222D
%E2%88%AD
\u222D
\u222D
\u222D
\222D