Code point
U+3320
Glyph appearance depends on your fonts.
U+3320
So<square> 30B5 30F3 30C1 30FC 30E0U+3320 SQUARE SANTIIMU is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the CJK Compatibility block.
Choose the representation you need, then copy its value.
U+3320
13088
㌠
㌠
E3 8C A0
3320
00003320
%E3%8C%A0
\u3320
\u3320
\u3320
\3320