111011122122020 has 24 divisors (see below), whose sum is σ = 240643464730368. Its totient is φ = 42972047272800.

The previous prime is 111011122121969. The next prime is 111011122122031. The reversal of 111011122122020 is 20221221110111.

It is a self number, because there is not a number n which added to its sum of digits gives 111011122122020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89525097866 + ... + 89525099105.

It is an arithmetic number, because the mean of its divisors is an integer number (10026811030432).

Almost surely, 2^{111011122122020} is an apocalyptic number.

111011122122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111011122122020 is an abundant number, since it is smaller than the sum of its proper divisors (129632342608348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111011122122020 is a wasteful number, since it uses less digits than its factorization.

111011122122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179050197011 (or 179050197009 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111011122122020 its reverse (20221221110111), we get a palindrome (131232343232131).

The spelling of 111011122122020 in words is "one hundred eleven trillion, eleven billion, one hundred twenty-two million, one hundred twenty-two thousand, twenty".