22112111112020 has 96 divisors (see below), whose sum is σ = 48687760509696. Its totient is φ = 8426097792000.

The previous prime is 22112111112011. The next prime is 22112111112037. The reversal of 22112111112020 is 2021111121122.

It is a super-3 number, since 3×22112111112020³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22112111112020.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 129565745 + ... + 129736295.

It is an arithmetic number, because the mean of its divisors is an integer number (507164171976).

Almost surely, 2^{22112111112020} is an apocalyptic number.

22112111112020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22112111112020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24343880254848).

22112111112020 is an abundant number, since it is smaller than the sum of its proper divisors (26575649397676).

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

22112111112020 is a wasteful number, since it uses less digits than its factorization.

22112111112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174321 (or 174319 counting only the distinct ones).

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

Adding to 22112111112020 its reverse (2021111121122), we get a palindrome (24133222233142).

The spelling of 22112111112020 in words is "twenty-two trillion, one hundred twelve billion, one hundred eleven million, one hundred twelve thousand, twenty".