Undefined Character (U+11997)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𑦗` `𑦗`
UTF-8 Encoding:	`0xF0 0x91 0xA6 0x97`
UTF-16 Encoding:	`0xD806 0xDD97`
UTF-32 Encoding:	`0x00011997`

References