The 2021 Trillion Dollar Quiz: How Many Zeros In a Trillion?

Questions updated Nov. 18, 2021.

Trillion dollar questions: How many zeros in a trillion? How many trillionaires live in the world? And who’s the wealthiest person on earth? Take the quiz!

The Trillion Dollar Quiz

Daily Quiz: 6 Quick General knowledge multiple-choice questions about the trillionaires of 2021. New facts follow each entry. Click "start quiz."

1 / 6

How many zeros in a trillion (in the UK/US English meaning)?

Photo: Manuel Dohmen, CC BY-SA 3.0, via Wikimedia Commons

2 / 6

How many trillionaires live in the world?

Photo: US Secretary of Defense

3 / 6

How many billions in a $1 trillion?

Image: Godot13 / Smithsonian Institute, Public domain, via Wikimedia Commons

4 / 6

How much did the U.S. Senate agree to spend on Joe Biden’s infrastructure plan over the next eight years?

Photo: Official White House Photo by Adam Schultz, via Wikimedia Commons

5 / 6

Which of these companies are worth over $2 trillion?

6 / 6

The US Federal government debt stands at $28.2 trillion. Can you guess Brazil's federal public debt in 2021?

Photo: Nesnad, CC BY 4.0, via Wikimedia Commons

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