22004121393957 has 16 divisors (see below), whose sum is σ = 30303519713792. Its totient is φ = 14187639836160.

The previous prime is 22004121393941. The next prime is 22004121393971. The reversal of 22004121393957 is 75939312140022.

It is not a de Polignac number, because 22004121393957 - 2⁴ = 22004121393941 is a prime.

It is a super-2 number, since 2×22004121393957² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22004121397957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71241028 + ... + 71549229.

It is an arithmetic number, because the mean of its divisors is an integer number (1893969982112).

Almost surely, 2^{22004121393957} is an apocalyptic number.

It is an amenable number.

22004121393957 is a deficient number, since it is larger than the sum of its proper divisors (8299398319835).

22004121393957 is a wasteful number, since it uses less digits than its factorization.

22004121393957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142791948.

The product of its (nonzero) digits is 816480, while the sum is 48.

The spelling of 22004121393957 in words is "twenty-two trillion, four billion, one hundred twenty-one million, three hundred ninety-three thousand, nine hundred fifty-seven".