22461685321 has 2 divisors, whose sum is σ = 22461685322. Its totient is φ = 22461685320.

The previous prime is 22461685313. The next prime is 22461685327. The reversal of 22461685321 is 12358616422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12741894400 + 9719790921 = 112880^2 + 98589^2 .

It is a cyclic number.

It is not a de Polignac number, because 22461685321 - 2³ = 22461685313 is a prime.

It is not a weakly prime, because it can be changed into another prime (22461685327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11230842660 + 11230842661.

It is an arithmetic number, because the mean of its divisors is an integer number (11230842661).

Almost surely, 2^22461685321 is an apocalyptic number.

It is an amenable number.

22461685321 is a deficient number, since it is larger than the sum of its proper divisors (1).

22461685321 is an equidigital number, since it uses as much as digits as its factorization.

22461685321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 40.

The spelling of 22461685321 in words is "twenty-two billion, four hundred sixty-one million, six hundred eighty-five thousand, three hundred twenty-one".