Code point
U+A871
Glyph appearance depends on your fonts.
U+A871
LoU+A871 PHAGS-PA SUBJOINED LETTER RA is a Unicode 16.0.0 character in the Other Letter category. It belongs to the Phags-pa block.
Choose the representation you need, then copy its value.
U+A871
43121
ꡱ
ꡱ
EA A1 B1
A871
0000A871
%EA%A1%B1
\uA871
\uA871
\uA871
\A871