89922845021 has 2 divisors, whose sum is σ = 89922845022. Its totient is φ = 89922845020.

The previous prime is 89922844997. The next prime is 89922845039. The reversal of 89922845021 is 12054822998.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89598448900 + 324396121 = 299330^2 + 18011^2 .

It is a cyclic number.

It is not a de Polignac number, because 89922845021 - 2¹⁸ = 89922582877 is a prime.

It is a super-2 number, since 2×89922845021² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89922845071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44961422510 + 44961422511.

It is an arithmetic number, because the mean of its divisors is an integer number (44961422511).

Almost surely, 2^89922845021 is an apocalyptic number.

It is an amenable number.

89922845021 is a deficient number, since it is larger than the sum of its proper divisors (1).

89922845021 is an equidigital number, since it uses as much as digits as its factorization.

89922845021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 829440, while the sum is 50.

The spelling of 89922845021 in words is "eighty-nine billion, nine hundred twenty-two million, eight hundred forty-five thousand, twenty-one".