Code point
U+2A0C
Glyph appearance depends on your fonts.
U+2A0C
Sm<compat> 222B 222B 222B 222BU+2A0C QUADRUPLE INTEGRAL OPERATOR is a Unicode 16.0.0 character in the Math Symbol category. It belongs to the Supplemental Mathematical Operators block.
Choose the representation you need, then copy its value.
U+2A0C
10764
⨌
⨌
⨌
E2 A8 8C
2A0C
00002A0C
%E2%A8%8C
\u2A0C
\u2A0C
\u2A0C
\2A0C