Code point
U+33F4
Glyph appearance depends on your fonts.
U+33F4
So<compat> 0032 0031 65E5U+33F4 IDEOGRAPHIC TELEGRAPH SYMBOL FOR DAY TWENTY-ONE 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+33F4
13300
㏴
㏴
E3 8F B4
33F4
000033F4
%E3%8F%B4
\u33F4
\u33F4
\u33F4
\33F4