- Traditional Chinese Character(HanT):
2231
- Simplified Chinese Character(HanS):
2231
- Bopomofo(Mandarin Phonetic Symbols): ㄦˋ ㄦˋ ㄙㄢ ㄧ (ㄦㄦㄙㄧ)
- Bopomofo(Zhuyin Keyboard Input/IME): "-4-4n0 u " (-4-4n0u)
- 「2231」的注音符號/「2231」怎麼發音怎麼唸: ㄦˋ ㄦˋ ㄙㄢ ㄧ
- (ASCII) Hanyu Pinyin: "erersanyi" "Er4Er4San1Yi1" "Er4 Er4 San1 Yi1" (EESY)
- (Latin) Hànyǔ Pīnyīn: èrèrSānYī [ èr èr Sān Yī ]