22292816885 has 4 divisors (see below), whose sum is σ = 26751380268. Its totient is φ = 17834253504.

The previous prime is 22292816837. The next prime is 22292816893. The reversal of 22292816885 is 58861829222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6717277681 + 15575539204 = 81959^2 + 124802^2 .

It is a cyclic number.

It is not a de Polignac number, because 22292816885 - 2⁸ = 22292816629 is a prime.

It is a super-2 number, since 2×22292816885² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 2229281684 + ... + 2229281693.

It is an arithmetic number, because the mean of its divisors is an integer number (6687845067).

Almost surely, 2^22292816885 is an apocalyptic number.

It is an amenable number.

22292816885 is a deficient number, since it is larger than the sum of its proper divisors (4458563383).

22292816885 is an equidigital number, since it uses as much as digits as its factorization.

22292816885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4458563382.

The product of its digits is 2211840, while the sum is 53.

The spelling of 22292816885 in words is "twenty-two billion, two hundred ninety-two million, eight hundred sixteen thousand, eight hundred eighty-five".