22011112020 has 96 divisors (see below), whose sum is σ = 65843366400. Its totient is φ = 5477687424.

The previous prime is 22011112007. The next prime is 22011112069. The reversal of 22011112020 is 2021111022.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 22011111987 and 22011112005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67710 + ... + 220469.

It is an arithmetic number, because the mean of its divisors is an integer number (685868400).

Almost surely, 2^22011112020 is an apocalyptic number.

22011112020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22011112020 is an abundant number, since it is smaller than the sum of its proper divisors (43832254380).

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

22011112020 is a wasteful number, since it uses less digits than its factorization.

22011112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288277 (or 288275 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22011112020 its reverse (2021111022), we get a palindrome (24032223042).

The spelling of 22011112020 in words is "twenty-two billion, eleven million, one hundred twelve thousand, twenty".