22120012210157 has 2 divisors, whose sum is σ = 22120012210158. Its totient is φ = 22120012210156.

The previous prime is 22120012210129. The next prime is 22120012210217. The reversal of 22120012210157 is 75101221002122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12183073661476 + 9936938548681 = 3490426^2 + 3152291^2 .

It is a cyclic number.

It is not a de Polignac number, because 22120012210157 - 2²⁰ = 22120011161581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22120012200157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060006105078 + 11060006105079.

It is an arithmetic number, because the mean of its divisors is an integer number (11060006105079).

Almost surely, 2^{22120012210157} is an apocalyptic number.

It is an amenable number.

22120012210157 is a deficient number, since it is larger than the sum of its proper divisors (1).

22120012210157 is an equidigital number, since it uses as much as digits as its factorization.

22120012210157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 26.

Adding to 22120012210157 its reverse (75101221002122), we get a palindrome (97221233212279).

The spelling of 22120012210157 in words is "twenty-two trillion, one hundred twenty billion, twelve million, two hundred ten thousand, one hundred fifty-seven".