22212112057 has 2 divisors, whose sum is σ = 22212112058. Its totient is φ = 22212112056.

The previous prime is 22212112007. The next prime is 22212112073. The reversal of 22212112057 is 75021121222.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21747105961 + 465006096 = 147469^2 + 21564^2 .

It is a cyclic number.

It is not a de Polignac number, because 22212112057 - 2¹⁵ = 22212079289 is a prime.

It is not a weakly prime, because it can be changed into another prime (22212112007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11106056028 + 11106056029.

It is an arithmetic number, because the mean of its divisors is an integer number (11106056029).

Almost surely, 2^22212112057 is an apocalyptic number.

It is an amenable number.

22212112057 is a deficient number, since it is larger than the sum of its proper divisors (1).

22212112057 is an equidigital number, since it uses as much as digits as its factorization.

22212112057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 25.

Adding to 22212112057 its reverse (75021121222), we get a palindrome (97233233279).

The spelling of 22212112057 in words is "twenty-two billion, two hundred twelve million, one hundred twelve thousand, fifty-seven".