22611110897 has 2 divisors, whose sum is σ = 22611110898. Its totient is φ = 22611110896.

The previous prime is 22611110887. The next prime is 22611110939. The reversal of 22611110897 is 79801111622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17536115776 + 5074995121 = 132424^2 + 71239^2 .

It is a cyclic number.

It is not a de Polignac number, because 22611110897 - 2¹² = 22611106801 is a prime.

It is a super-2 number, since 2×22611110897² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22611110897.

It is not a weakly prime, because it can be changed into another prime (22611110807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11305555448 + 11305555449.

It is an arithmetic number, because the mean of its divisors is an integer number (11305555449).

Almost surely, 2^22611110897 is an apocalyptic number.

It is an amenable number.

22611110897 is a deficient number, since it is larger than the sum of its proper divisors (1).

22611110897 is an equidigital number, since it uses as much as digits as its factorization.

22611110897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 38.

The spelling of 22611110897 in words is "twenty-two billion, six hundred eleven million, one hundred ten thousand, eight hundred ninety-seven".