22250100978 has 64 divisors (see below), whose sum is σ = 57574437120. Its totient is φ = 6237219456.

The previous prime is 22250100959. The next prime is 22250101001. The reversal of 22250100978 is 87900105222.

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, 535275 + ... + 575342.

It is an arithmetic number, because the mean of its divisors is an integer number (899600580).

Almost surely, 2^22250100978 is an apocalyptic number.

22250100978 is an abundant number, since it is smaller than the sum of its proper divisors (35324336142).

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

22250100978 is a wasteful number, since it uses less digits than its factorization.

22250100978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110688 (or 1110682 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 22250100978 in words is "twenty-two billion, two hundred fifty million, one hundred thousand, nine hundred seventy-eight".