22001907996 has 36 divisors (see below), whose sum is σ = 55634105800. Its totient is φ = 7331573088.

The previous prime is 22001907989. The next prime is 22001908051. The reversal of 22001907996 is 69970910022.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13635 + ... + 210213.

Almost surely, 2^22001907996 is an apocalyptic number.

It is an amenable number.

22001907996 is an abundant number, since it is smaller than the sum of its proper divisors (33632197804).

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

22001907996 is a wasteful number, since it uses less digits than its factorization.

22001907996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199698 (or 199693 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The spelling of 22001907996 in words is "twenty-two billion, one million, nine hundred seven thousand, nine hundred ninety-six".