22112391888577 has 2 divisors, whose sum is σ = 22112391888578. Its totient is φ = 22112391888576.

The previous prime is 22112391888553. The next prime is 22112391888673. The reversal of 22112391888577 is 77588819321122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13335416829361 + 8776975059216 = 3651769^2 + 2962596^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22112391888577 is a prime.

It is not a weakly prime, because it can be changed into another prime (22112391888877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11056195944288 + 11056195944289.

It is an arithmetic number, because the mean of its divisors is an integer number (11056195944289).

Almost surely, 2^{22112391888577} is an apocalyptic number.

It is an amenable number.

22112391888577 is a deficient number, since it is larger than the sum of its proper divisors (1).

22112391888577 is an equidigital number, since it uses as much as digits as its factorization.

22112391888577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27095040, while the sum is 64.

It can be divided in two parts, 2211239 and 1888577, that added together give a triangular number (4099816 = T₂₈₆₃).

The spelling of 22112391888577 in words is "twenty-two trillion, one hundred twelve billion, three hundred ninety-one million, eight hundred eighty-eight thousand, five hundred seventy-seven".