22449257321 has 8 divisors (see below), whose sum is σ = 24393081600. Its totient is φ = 20581661520.

The previous prime is 22449257291. The next prime is 22449257323. The reversal of 22449257321 is 12375294422.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22449257321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22449257323) 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, 19056506 + ... + 19057683.

It is an arithmetic number, because the mean of its divisors is an integer number (3049135200).

Almost surely, 2^22449257321 is an apocalyptic number.

It is an amenable number.

22449257321 is a deficient number, since it is larger than the sum of its proper divisors (1943824279).

22449257321 is a wasteful number, since it uses less digits than its factorization.

22449257321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38114239.

The product of its digits is 241920, while the sum is 41.

The spelling of 22449257321 in words is "twenty-two billion, four hundred forty-nine million, two hundred fifty-seven thousand, three hundred twenty-one".