22512608942897 has 2 divisors, whose sum is σ = 22512608942898. Its totient is φ = 22512608942896.

The previous prime is 22512608942881. The next prime is 22512608942899. The reversal of 22512608942897 is 79824980621522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20779657857841 + 1732951085056 = 4558471^2 + 1316416^2 .

It is a cyclic number.

It is not a de Polignac number, because 22512608942897 - 2⁴ = 22512608942881 is a prime.

It is a super-2 number, since 2×22512608942897² (a number of 28 digits) contains 22 as substring.

Together with 22512608942899, 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 (22512608942899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11256304471448 + 11256304471449.

It is an arithmetic number, because the mean of its divisors is an integer number (11256304471449).

Almost surely, 2^{22512608942897} is an apocalyptic number.

It is an amenable number.

22512608942897 is a deficient number, since it is larger than the sum of its proper divisors (1).

22512608942897 is an equidigital number, since it uses as much as digits as its factorization.

22512608942897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69672960, while the sum is 65.

The spelling of 22512608942897 in words is "twenty-two trillion, five hundred twelve billion, six hundred eight million, nine hundred forty-two thousand, eight hundred ninety-seven".