22105512040 has 32 divisors (see below), whose sum is σ = 50437935360. Its totient is φ = 8717665600.

The previous prime is 22105512031. The next prime is 22105512043. The reversal of 22105512040 is 4021550122.

It is not an unprimeable number, because it can be changed into a prime (22105512043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3888976 + ... + 3894655.

It is an arithmetic number, because the mean of its divisors is an integer number (1576185480).

Almost surely, 2^22105512040 is an apocalyptic number.

22105512040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22105512040 is an abundant number, since it is smaller than the sum of its proper divisors (28332423320).

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

22105512040 is a wasteful number, since it uses less digits than its factorization.

22105512040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7783713 (or 7783709 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The spelling of 22105512040 in words is "twenty-two billion, one hundred five million, five hundred twelve thousand, forty".