1 600 000 000 000
To write 12,150 trillion in numerical form, you would express it as 12,150,000,000,000,000. This is equivalent to 12.15 quadrillion or 1.215 x 10^16 in scientific notation.
1.2364e+16
1,600,000,000,000
16,000,000,000,00016,000,000,000,00016,000,000,000,00016,000,000,000,000
3.9 trillion would be 3 trillion and 900 billion - 3,900,000,000,000
I would write it as 2.515*1012
You would write it as 22,000,000,000,000.
Not sure how you can wright it but I would write it as 20000000000000000000
9,836,000,000
5.54 Trillion is: 5.54 x 1012 or 5,540,000,000,000
1.86 trillion is 1.86 x 1012 or 1,860,000,000,000
1.346 Trillion is: 1.346 x 1012 or 1,346,000,000,000