It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-111122021200391 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 111122021200391.
It is a congruent number.
Almost surely, 2111122021200391 is an apocalyptic number.
111122021200391 is an equidigital number, since it uses as much as digits as its factorization.
111122021200391 is an evil number, because the sum of its binary digits is even.
The spelling of 111122021200391 in words is "one hundred eleven trillion, one hundred twenty-two billion, twenty-one million, two hundred thousand, three hundred ninety-one".