What was the highest denomination of banknote issued by Zimbabwe during its 2000s hyperinflation?

The highest denomination of banknote issued by Zimbabwe during its 2000s hyperinflation was 100 trillion dollars.

The Reserve Bank of Zimbabwe issued the note in January 2009, near the end of a prolonged economic crisis. Rapid price increases made ordinary denominations inadequate, so the central bank repeatedly introduced notes with larger numerical values.

Despite its extraordinary face value, the 100-trillion-dollar note could buy very little by the time it was issued. Zimbabwe’s hyperinflation was driven by several factors, including falling production, fiscal problems, loss of confidence, and extensive monetary expansion. The country’s currency system became increasingly difficult to use for everyday transactions.

Zimbabwe abandoned the Zimbabwean dollar in 2009 and allowed foreign currencies, especially the U.S. dollar and South African rand, to circulate. The famous note is therefore a symbol of hyperinflation, not evidence that its holder possessed equivalent purchasing power.