22157942943091 has 2 divisors, whose sum is σ = 22157942943092. Its totient is φ = 22157942943090.

The previous prime is 22157942943077. The next prime is 22157942943113. The reversal of 22157942943091 is 19034924975122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22157942943091 - 2⁷ = 22157942942963 is a prime.

It is not a weakly prime, because it can be changed into another prime (22157942943791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11078971471545 + 11078971471546.

It is an arithmetic number, because the mean of its divisors is an integer number (11078971471546).

Almost surely, 2^{22157942943091} is an apocalyptic number.

22157942943091 is a deficient number, since it is larger than the sum of its proper divisors (1).

22157942943091 is an equidigital number, since it uses as much as digits as its factorization.

22157942943091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9797760, while the sum is 58.

The spelling of 22157942943091 in words is "twenty-two trillion, one hundred fifty-seven billion, nine hundred forty-two million, nine hundred forty-three thousand, ninety-one".