10%of 2 trillion =,how much

"2 trillion" can be written as 2,000,000,000,000 or 2 × 10¹².

10% of 2,000,000,000,000 = (10/100) × 2,000,000,000,000
= 0.1 × 2,000,000,000,000
= 200,000,000,000

Alternatively, using scientific notation:
10% of 2 × 10¹² = 0.1 × 2 × 10¹²
= 0.2 × 10¹²
= 2 × 10¹¹

10% of 2 trillion is 200 billion (or 200,000,000,000 or 2 × 10¹¹).