21 million x 5 million equalis how many trillion

The product of 21 million and 5 million is 105 million. To convert this to trillions, we divide by 1 trillion (which is
1,000 billion or
1,
000,000 million).

So, 105 million is equal to:

105 million ÷
1,
000,000 million = 0.105 trillion.

Therefore, 21 million x 5 million equals 0.105 trillion.