Undefined Character (U+11999)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𑦙` `𑦙`
UTF-8 Encoding:	`0xF0 0x91 0xA6 0x99`
UTF-16 Encoding:	`0xD806 0xDD99`
UTF-32 Encoding:	`0x00011999`

References