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

5 Quick General knowledge multiple-choice questions about the trillionaires of the world. Click "Start quiz." new facts follow each entry.

1 / 5

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

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

2 / 5

How many trillionaires live in the world?

Photo: US Secretary of Defense

3 / 5

How many billions in a $1 trillion?

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

4 / 5

Which of these companies are worth over $2 trillion?

5 / 5

What year saw Tesla break the $1 trillion market worth barrier?

Screenshot: CNET Highlights on YouTube
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