Step 1: Since 219509965012 do not have a decimal point, we will add one at the end of the number 219509965012.

219509965012.

Step 2: Move the decimal point from its current position (the black dot) to a position immediately to the right of the first nonzero digit (the red dot).

2.19509965012.

Step 3: We moved the decimal point 11 spaces to the right. Therefore, the exponent on base 10 will be positive 11.Now we know that the:

Mantissa = 2.19509965012

Exponent = 11

So, the solution is: