Undefined Character (U+11858)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𑡘` `𑡘`
UTF-8 Encoding:	`0xF0 0x91 0xA1 0x98`
UTF-16 Encoding:	`0xD806 0xDC58`
UTF-32 Encoding:	`0x00011858`

References