22101199957 has 2 divisors, whose sum is σ = 22101199958. Its totient is φ = 22101199956.

The previous prime is 22101199943. The next prime is 22101199963. The reversal of 22101199957 is 75999110122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17266222801 + 4834977156 = 131401^2 + 69534^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22101199957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22101199987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11050599978 + 11050599979.

It is an arithmetic number, because the mean of its divisors is an integer number (11050599979).

Almost surely, 2^22101199957 is an apocalyptic number.

It is an amenable number.

22101199957 is a deficient number, since it is larger than the sum of its proper divisors (1).

22101199957 is an equidigital number, since it uses as much as digits as its factorization.

22101199957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102060, while the sum is 46.

The spelling of 22101199957 in words is "twenty-two billion, one hundred one million, one hundred ninety-nine thousand, nine hundred fifty-seven".