It is so very simple and quick to get the answer, especially since you can use the calculator that comes with your computer. But since you are not able to do so, the answer is 1,000,000,002,999,999.
99,999,999,999,999 + 999,999,999,999,999 = 1,099,999,999,999,998
3,009,048
3009048
It is 3000030.
999999999999999
9 recurring because 111111111111111 plus 2222222222222222 = 333333333333333 then that times 333333333333333 = 999999999999999
3,060,056
3,048,002.073
The result of multiplying 999999999999999 by 3 is 2,999,999,999,999,997.
Assuming your number line is infinite, then it is: n > 999999999999999 where n = 1000000000000000, 1000000000000001, 1000000000000002, ... and so on. If your number line is finite, then it is: 999999999999999 < n
You write it as 3,072,856
1,000,000,000,000,000