22640204622 has 32 divisors (see below), whose sum is σ = 51777234432. Its totient is φ = 6465105504.

The previous prime is 22640204617. The next prime is 22640204627.

22640204622 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (22640204617) and next prime (22640204627).

It is a self number, because there is not a number n which added to its sum of digits gives 22640204622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22640204627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68353 + ... + 223500.

It is an arithmetic number, because the mean of its divisors is an integer number (1618038576).

Almost surely, 2^22640204622 is an apocalyptic number.

22640204622 is an abundant number, since it is smaller than the sum of its proper divisors (29137029810).

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

22640204622 is a wasteful number, since it uses less digits than its factorization.

22640204622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293712.

The product of its (nonzero) digits is 18432, while the sum is 30.

The spelling of 22640204622 in words is "twenty-two billion, six hundred forty million, two hundred four thousand, six hundred twenty-two".