22113319957 has 2 divisors, whose sum is σ = 22113319958. Its totient is φ = 22113319956.

The previous prime is 22113319933. The next prime is 22113319999. The reversal of 22113319957 is 75991331122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18781606116 + 3331713841 = 137046^2 + 57721^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22113319957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22113319757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11056659978 + 11056659979.

It is an arithmetic number, because the mean of its divisors is an integer number (11056659979).

Almost surely, 2^22113319957 is an apocalyptic number.

It is an amenable number.

22113319957 is a deficient number, since it is larger than the sum of its proper divisors (1).

22113319957 is an equidigital number, since it uses as much as digits as its factorization.

22113319957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 43.

The spelling of 22113319957 in words is "twenty-two billion, one hundred thirteen million, three hundred nineteen thousand, nine hundred fifty-seven".