22910090081 has 4 divisors (see below), whose sum is σ = 23252031792. Its totient is φ = 22568148372.

The previous prime is 22910090057. The next prime is 22910090083. The reversal of 22910090081 is 18009001922.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18009001922 = 2 ⋅9004500961.

It is a cyclic number.

It is not a de Polignac number, because 22910090081 - 2¹⁰ = 22910089057 is a prime.

It is a super-2 number, since 2×22910090081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22910090083) 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 in 3 ways as a sum of consecutive naturals, for example, 170970755 + ... + 170970888.

It is an arithmetic number, because the mean of its divisors is an integer number (5813007948).

Almost surely, 2^22910090081 is an apocalyptic number.

It is an amenable number.

22910090081 is a deficient number, since it is larger than the sum of its proper divisors (341941711).

22910090081 is an equidigital number, since it uses as much as digits as its factorization.

22910090081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341941710.

The product of its (nonzero) digits is 2592, while the sum is 32.

The spelling of 22910090081 in words is "twenty-two billion, nine hundred ten million, ninety thousand, eighty-one".