Code point
U+3300
Glyph appearance depends on your fonts.
U+3300
So<square> 30A2 30D1 30FC 30C8U+3300 SQUARE APAATO 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+3300
13056
㌀
㌀
E3 8C 80
3300
00003300
%E3%8C%80
\u3300
\u3300
\u3300
\3300