22331120321 has 4 divisors (see below), whose sum is σ = 23644715652. Its totient is φ = 21017524992.

The previous prime is 22331120309. The next prime is 22331120323. The reversal of 22331120321 is 12302113322.

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 6191958721 + 16139161600 = 78689^2 + 127040^2 .

It is a cyclic number.

It is not a de Polignac number, because 22331120321 - 2³⁴ = 5151251137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22331120293 and 22331120302.

It is not an unprimeable number, because it can be changed into a prime (22331120323) 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, 656797640 + ... + 656797673.

It is an arithmetic number, because the mean of its divisors is an integer number (5911178913).

Almost surely, 2^22331120321 is an apocalyptic number.

It is an amenable number.

22331120321 is a deficient number, since it is larger than the sum of its proper divisors (1313595331).

22331120321 is a wasteful number, since it uses less digits than its factorization.

22331120321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313595330.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 22331120321 its reverse (12302113322), we get a palindrome (34633233643).

The spelling of 22331120321 in words is "twenty-two billion, three hundred thirty-one million, one hundred twenty thousand, three hundred twenty-one".