As character names:

U+0281 LATIN LETTER SMALL CAPITAL INVERTED R character (ʁ)

As raw characters:

ʁ

As a string of HTML entities:

ʁ

Decoder output:

Byte number 1 is decimal 202, hex 0xCA, octal \312, binary 11001010
This is the first byte of a 2 byte sequence.

Byte number 2 is decimal 129, hex 0x81, octal \201, binary 10000001
This is continuation byte 1, expecting 0 more.

U+0281	LATIN LETTER SMALL CAPITAL INVERTED R
	* voiced uvular fricative or approximant
	x (modifier letter small capital inverted r - 02B6)