22490022881 has 2 divisors, whose sum is σ = 22490022882. Its totient is φ = 22490022880.

The previous prime is 22490022871. The next prime is 22490022883. The reversal of 22490022881 is 18822009422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18682515856 + 3807507025 = 136684^2 + 61705^2 .

It is a cyclic number.

It is not a de Polignac number, because 22490022881 - 2¹⁰ = 22490021857 is a prime.

It is a super-2 number, since 2×22490022881² (a number of 22 digits) contains 22 as substring.

Together with 22490022883, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22490022883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11245011440 + 11245011441.

It is an arithmetic number, because the mean of its divisors is an integer number (11245011441).

Almost surely, 2^22490022881 is an apocalyptic number.

It is an amenable number.

22490022881 is a deficient number, since it is larger than the sum of its proper divisors (1).

22490022881 is an equidigital number, since it uses as much as digits as its factorization.

22490022881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36864, while the sum is 38.

The spelling of 22490022881 in words is "twenty-two billion, four hundred ninety million, twenty-two thousand, eight hundred eighty-one".