The world's largest banknote is the 100,000-dollar note issued by the Central Bank of the Republic of China (Taiwan). Introduced in 1949, it holds the record as the highest-denomination banknote ever printed. The 100,000-dollar bill features a portrait of Sun Yat-sen, the founding father of the Republic of China, on the front side. The reverse side depicts the Bank of Taiwan headquarters building. However, it's important to note that this banknote is not in common circulation and is primarily used for internal banking transactions, interbank transfers, and large-scale financial operations. Its size, approximately 225 mm x 140 mm, makes it significantly larger than typical banknotes, reflecting its high face value and limited use.