22442422321 has 8 divisors (see below), whose sum is σ = 24495920064. Its totient is φ = 20391137520.

The previous prime is 22442422283. The next prime is 22442422397. The reversal of 22442422321 is 12322424422.

It is a happy number.

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 22442422321 - 2⁹ = 22442421809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22442422321.

It is not an unprimeable number, because it can be changed into a prime (22442422921) 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, 531990 + ... + 572623.

It is an arithmetic number, because the mean of its divisors is an integer number (3061990008).

Almost surely, 2^22442422321 is an apocalyptic number.

It is an amenable number.

22442422321 is a deficient number, since it is larger than the sum of its proper divisors (2053497743).

22442422321 is a wasteful number, since it uses less digits than its factorization.

22442422321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106471.

The product of its digits is 12288, while the sum is 28.

Adding to 22442422321 its reverse (12322424422), we get a palindrome (34764846743).

The spelling of 22442422321 in words is "twenty-two billion, four hundred forty-two million, four hundred twenty-two thousand, three hundred twenty-one".