22113232020 has 72 divisors (see below), whose sum is σ = 73174701600. Its totient is φ = 5360783040.

The previous prime is 22113231893. The next prime is 22113232027. The reversal of 22113232020 is 2023231122.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22113231984 and 22113232002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22113232027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5582170 + ... + 5586129.

It is an arithmetic number, because the mean of its divisors is an integer number (1016315300).

Almost surely, 2^22113232020 is an apocalyptic number.

22113232020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22113232020 is an abundant number, since it is smaller than the sum of its proper divisors (51061469580).

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

22113232020 is a wasteful number, since it uses less digits than its factorization.

22113232020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11168325 (or 11168320 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22113232020 its reverse (2023231122), we get a palindrome (24136463142).

The spelling of 22113232020 in words is "twenty-two billion, one hundred thirteen million, two hundred thirty-two thousand, twenty".