It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-111120220202021 is a prime.
It is a congruent number.
Almost surely, 2111120220202021 is an apocalyptic number.
It is an amenable number.
111120220202021 is an equidigital number, since it uses as much as digits as its factorization.
111120220202021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4831313921850.
Adding to 111120220202021 its reverse (120202022021111), we get a palindrome (231322242223132).
The spelling of 111120220202021 in words is "one hundred eleven trillion, one hundred twenty billion, two hundred twenty million, two hundred two thousand, twenty-one".