Code point
U+233C
Glyph appearance depends on your fonts.
U+233C
SoU+233C APL FUNCTIONAL SYMBOL QUAD CIRCLE is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the Miscellaneous Technical block.
Choose the representation you need, then copy its value.
U+233C
9020
⌼
⌼
E2 8C BC
233C
0000233C
%E2%8C%BC
\u233C
\u233C
\u233C
\233C