１７２１

• Traditional Chinese Character(HanT): １７２１
• Simplified Chinese Character(HanS): １７２１
• Bopomofo(Mandarin Phonetic Symbols): ㄧ ㄑㄧ ㄦˋ ㄧ (ㄧㄑㄦㄧ)
• Bopomofo(Zhuyin Keyboard Input/IME): "u fu -4u " (ufu-4u)
• 「１７２１」的漢語拼音: Yi1 Qi1 Er4 Yi1
• (ASCII) Hanyu Pinyin: "yiqieryi" "Yi1Qi1Er4Yi1" "Yi1 Qi1 Er4 Yi1" (YQEY)
• (Latin) Hànyǔ Pīnyīn: YīQīèrYī [ Yī Qī èr Yī ]
• (英文翻譯) English Translation: "１７２１"
• (西語翻譯) Traducción Español: "１７２１"
• (日文翻譯) 日本語翻訳: "１７２１"