22120957234157 has 2 divisors, whose sum is σ = 22120957234158. Its totient is φ = 22120957234156.

The previous prime is 22120957234093. The next prime is 22120957234193. The reversal of 22120957234157 is 75143275902122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21138422303716 + 982534930441 = 4597654^2 + 991229^2 .

It is a cyclic number.

It is not a de Polignac number, because 22120957234157 - 2⁶ = 22120957234093 is a prime.

It is a super-2 number, since 2×22120957234157² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22120957234357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060478617078 + 11060478617079.

It is an arithmetic number, because the mean of its divisors is an integer number (11060478617079).

Almost surely, 2^{22120957234157} is an apocalyptic number.

It is an amenable number.

22120957234157 is a deficient number, since it is larger than the sum of its proper divisors (1).

22120957234157 is an equidigital number, since it uses as much as digits as its factorization.

22120957234157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2116800, while the sum is 50.

The spelling of 22120957234157 in words is "twenty-two trillion, one hundred twenty billion, nine hundred fifty-seven million, two hundred thirty-four thousand, one hundred fifty-seven".