22157262277 has 2 divisors, whose sum is σ = 22157262278. Its totient is φ = 22157262276.

The previous prime is 22157262247. The next prime is 22157262287. The reversal of 22157262277 is 77226275122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15155087236 + 7002175041 = 123106^2 + 83679^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22157262277 is a prime.

It is a super-2 number, since 2×22157262277² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22157262247) by changing a digit.

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 as a sum of consecutive naturals, namely, 11078631138 + 11078631139.

It is an arithmetic number, because the mean of its divisors is an integer number (11078631139).

Almost surely, 2^22157262277 is an apocalyptic number.

It is an amenable number.

22157262277 is a deficient number, since it is larger than the sum of its proper divisors (1).

22157262277 is an equidigital number, since it uses as much as digits as its factorization.

22157262277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 329280, while the sum is 43.

The spelling of 22157262277 in words is "twenty-two billion, one hundred fifty-seven million, two hundred sixty-two thousand, two hundred seventy-seven".