As character names:

U+2148 DOUBLE-STRUCK ITALIC SMALL I character (ⅈ)

As raw characters:

ⅈ

As a string of HTML entities:

ⅈ

Decoder output:

Byte number 1 is decimal 226, hex 0xE2, octal \342, binary 11100010
This is the first byte of a 3 byte sequence.

Byte number 2 is decimal 133, hex 0x85, octal \205, binary 10000101
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 136, hex 0x88, octal \210, binary 10001000
This is continuation byte 2, expecting 0 more.

U+2148	DOUBLE-STRUCK ITALIC SMALL I
	* sometimes used for the imaginary unit
	# <font> 0069 latin small letter i