22005523012 has 24 divisors (see below), whose sum is σ = 42110843040. Its totient is φ = 9978629760.

The previous prime is 22005523009. The next prime is 22005523051. The reversal of 22005523012 is 21032550022.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 578373 + ... + 615244.

It is an arithmetic number, because the mean of its divisors is an integer number (1754618460).

Almost surely, 2^22005523012 is an apocalyptic number.

22005523012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22005523012 is a deficient number, since it is larger than the sum of its proper divisors (20105320028).

22005523012 is a wasteful number, since it uses less digits than its factorization.

22005523012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194051 (or 1194049 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The spelling of 22005523012 in words is "twenty-two billion, five million, five hundred twenty-three thousand, twelve".