２４２１

• Traditional Chinese Character(HanT): ２４２１
• Simplified Chinese Character(HanS): ２４２１
• Bopomofo(Mandarin Phonetic Symbols): ㄦˋ ㄙˋ ㄦˋ ㄧ (ㄦㄙㄦㄧ)
• Bopomofo(Zhuyin Keyboard Input/IME): "-4n4-4u " (-4n4-4u)
• 「２４２１」的漢語拼音: Er4 Si4 Er4 Yi1
• (ASCII) Hanyu Pinyin: "ersieryi" "Er4Si4Er4Yi1" "Er4 Si4 Er4 Yi1" (ESEY)
• (Latin) Hànyǔ Pīnyīn: èrSìèrYī [ èr Sì èr Yī ]
• (英文翻譯) English Translation: "２４２１"
• (西語翻譯) Traducción Español: "２４２１"
• (日文翻譯) 日本語翻訳: "２４２１"