22430926888921 has 4 divisors (see below), whose sum is σ = 23204407126500. Its totient is φ = 21657446651344.

The previous prime is 22430926888897. The next prime is 22430926888933. The reversal of 22430926888921 is 12988862903422.

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 11017752490000 + 11413174398921 = 3319300^2 + 3378339^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22430926888921 is a prime.

It is a super-2 number, since 2×22430926888921² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22430926888021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386740118746 + ... + 386740118803.

It is an arithmetic number, because the mean of its divisors is an integer number (5801101781625).

Almost surely, 2^{22430926888921} is an apocalyptic number.

It is an amenable number.

22430926888921 is a deficient number, since it is larger than the sum of its proper divisors (773480237579).

22430926888921 is an equidigital number, since it uses as much as digits as its factorization.

22430926888921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773480237578.

The product of its (nonzero) digits is 47775744, while the sum is 64.

The spelling of 22430926888921 in words is "twenty-two trillion, four hundred thirty billion, nine hundred twenty-six million, eight hundred eighty-eight thousand, nine hundred twenty-one".