As character names:

U+1A81 TAI THAM HORA DIGIT ONE character (᪁)

As raw characters:

᪁

As a string of HTML entities:

᪁

Decoder output:

Byte number 1 is decimal 225, hex 0xE1, octal \341, binary 11100001
This is the first byte of a 3 byte sequence.

Byte number 2 is decimal 170, hex 0xAA, octal \252, binary 10101010
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 129, hex 0x81, octal \201, binary 10000001
This is continuation byte 2, expecting 0 more.

U+1A81	TAI THAM HORA DIGIT ONE