11222116957 has 2 divisors, whose sum is σ = 11222116958. Its totient is φ = 11222116956.

The previous prime is 11222116951. The next prime is 11222116973. The reversal of 11222116957 is 75961122211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11002751236 + 219365721 = 104894^2 + 14811^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11222116957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11222116951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611058478 + 5611058479.

It is an arithmetic number, because the mean of its divisors is an integer number (5611058479).

Almost surely, 2^11222116957 is an apocalyptic number.

It is an amenable number.

11222116957 is a deficient number, since it is larger than the sum of its proper divisors (1).

11222116957 is an equidigital number, since it uses as much as digits as its factorization.

11222116957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 37.

The spelling of 11222116957 in words is "eleven billion, two hundred twenty-two million, one hundred sixteen thousand, nine hundred fifty-seven".