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1 000 000 000 000 (trillion)
One trillion is 1,000,000,000,000 = 1012.
Explanation
In many countries you write this as 1.000.000.000.000 = 1012 because commas and points are used differently there.
In the USA they speak of 1 billion for 1000 million. That is then 1,000,000,000 = 109.
So we have to be careful.