22112202857 has 2 divisors, whose sum is σ = 22112202858. Its totient is φ = 22112202856.

The previous prime is 22112202851. The next prime is 22112202859. The reversal of 22112202857 is 75820221122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13123077136 + 8989125721 = 114556^2 + 94811^2 .

It is a cyclic number.

It is not a de Polignac number, because 22112202857 - 2²² = 22108008553 is a prime.

Together with 22112202859, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22112202851) 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, 11056101428 + 11056101429.

It is an arithmetic number, because the mean of its divisors is an integer number (11056101429).

Almost surely, 2^22112202857 is an apocalyptic number.

It is an amenable number.

22112202857 is a deficient number, since it is larger than the sum of its proper divisors (1).

22112202857 is an equidigital number, since it uses as much as digits as its factorization.

22112202857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 32.

Adding to 22112202857 its reverse (75820221122), we get a palindrome (97932423979).

The spelling of 22112202857 in words is "twenty-two billion, one hundred twelve million, two hundred two thousand, eight hundred fifty-seven".