22136604020 has 12 divisors (see below), whose sum is σ = 46486868484. Its totient is φ = 8854641600.

The previous prime is 22136604019. The next prime is 22136604029. The reversal of 22136604020 is 2040663122.

It can be written as a sum of positive squares in 2 ways, for example, as 7011047824 + 15125556196 = 83732^2 + 122986^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22136604029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553415081 + ... + 553415120.

It is an arithmetic number, because the mean of its divisors is an integer number (3873905707).

Almost surely, 2^22136604020 is an apocalyptic number.

22136604020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22136604020 is an abundant number, since it is smaller than the sum of its proper divisors (24350264464).

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

22136604020 is a wasteful number, since it uses less digits than its factorization.

22136604020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106830210 (or 1106830208 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The spelling of 22136604020 in words is "twenty-two billion, one hundred thirty-six million, six hundred four thousand, twenty".