111122112020 has 48 divisors (see below), whose sum is σ = 235318099968. Its totient is φ = 44075566080.

The previous prime is 111122112011. The next prime is 111122112037. The reversal of 111122112020 is 20211221111.

It is a junction number, because it is equal to n+sod(n) for n = 111122111986 and 111122112004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5275229 + ... + 5296251.

It is an arithmetic number, because the mean of its divisors is an integer number (4902460416).

Almost surely, 2^111122112020 is an apocalyptic number.

111122112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111122112020 is an abundant number, since it is smaller than the sum of its proper divisors (124195987948).

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

111122112020 is a wasteful number, since it uses less digits than its factorization.

111122112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23240 (or 23238 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111122112020 its reverse (20211221111), we get a palindrome (131333333131).

The spelling of 111122112020 in words is "one hundred eleven billion, one hundred twenty-two million, one hundred twelve thousand, twenty".