22012020089 has 2 divisors, whose sum is σ = 22012020090. Its totient is φ = 22012020088.

The previous prime is 22012020077. The next prime is 22012020113. The reversal of 22012020089 is 98002021022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21589306489 + 422713600 = 146933^2 + 20560^2 .

It is a cyclic number.

It is not a de Polignac number, because 22012020089 - 2¹⁶ = 22011954553 is a prime.

It is not a weakly prime, because it can be changed into another prime (22012020029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11006010044 + 11006010045.

It is an arithmetic number, because the mean of its divisors is an integer number (11006010045).

Almost surely, 2^22012020089 is an apocalyptic number.

It is an amenable number.

22012020089 is a deficient number, since it is larger than the sum of its proper divisors (1).

22012020089 is an equidigital number, since it uses as much as digits as its factorization.

22012020089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 22012020089 in words is "twenty-two billion, twelve million, twenty thousand, eighty-nine".