22601964211217 has 2 divisors, whose sum is σ = 22601964211218. Its totient is φ = 22601964211216.

The previous prime is 22601964211199. The next prime is 22601964211223. The reversal of 22601964211217 is 71211246910622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21672367418881 + 929596792336 = 4655359^2 + 964156^2 .

It is a cyclic number.

It is not a de Polignac number, because 22601964211217 - 2²⁸ = 22601695775761 is a prime.

It is not a weakly prime, because it can be changed into another prime (22601964211297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11300982105608 + 11300982105609.

It is an arithmetic number, because the mean of its divisors is an integer number (11300982105609).

Almost surely, 2^{22601964211217} is an apocalyptic number.

It is an amenable number.

22601964211217 is a deficient number, since it is larger than the sum of its proper divisors (1).

22601964211217 is an equidigital number, since it uses as much as digits as its factorization.

22601964211217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 22601964211217 in words is "twenty-two trillion, six hundred one billion, nine hundred sixty-four million, two hundred eleven thousand, two hundred seventeen".