22321012020 has 24 divisors (see below), whose sum is σ = 62498833824. Its totient is φ = 5952269856.

The previous prime is 22321011997. The next prime is 22321012027. The reversal of 22321012020 is 2021012322.

It is a happy number.

It is a super-3 number, since 3×22321012020³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22321012027) by changing a digit.

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, 186008374 + ... + 186008493.

It is an arithmetic number, because the mean of its divisors is an integer number (2604118076).

Almost surely, 2^22321012020 is an apocalyptic number.

22321012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22321012020 is an abundant number, since it is smaller than the sum of its proper divisors (40177821804).

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

22321012020 is a wasteful number, since it uses less digits than its factorization.

22321012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372016879 (or 372016877 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 22321012020 its reverse (2021012322), we get a palindrome (24342024342).

The spelling of 22321012020 in words is "twenty-two billion, three hundred twenty-one million, twelve thousand, twenty".