22110565397 has 2 divisors, whose sum is σ = 22110565398. Its totient is φ = 22110565396.

The previous prime is 22110565357. The next prime is 22110565409. The reversal of 22110565397 is 79356501122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14364981316 + 7745584081 = 119854^2 + 88009^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22110565397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22110565327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11055282698 + 11055282699.

It is an arithmetic number, because the mean of its divisors is an integer number (11055282699).

Almost surely, 2^22110565397 is an apocalyptic number.

It is an amenable number.

22110565397 is a deficient number, since it is larger than the sum of its proper divisors (1).

22110565397 is an equidigital number, since it uses as much as digits as its factorization.

22110565397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 41.

The spelling of 22110565397 in words is "twenty-two billion, one hundred ten million, five hundred sixty-five thousand, three hundred ninety-seven".