22456465921 has 8 divisors (see below), whose sum is σ = 24214932000. Its totient is φ = 20755654560.

The previous prime is 22456465903. The next prime is 22456466041. The reversal of 22456465921 is 12956465422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22456465921 - 2³¹ = 20308982273 is a prime.

It is a super-2 number, since 2×22456465921² (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 (22456465901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14412871 + ... + 14414428.

It is an arithmetic number, because the mean of its divisors is an integer number (3026866500).

Almost surely, 2^22456465921 is an apocalyptic number.

It is an amenable number.

22456465921 is a deficient number, since it is larger than the sum of its proper divisors (1758466079).

22456465921 is a wasteful number, since it uses less digits than its factorization.

22456465921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28827359.

The product of its digits is 1036800, while the sum is 46.

The spelling of 22456465921 in words is "twenty-two billion, four hundred fifty-six million, four hundred sixty-five thousand, nine hundred twenty-one".