22204111321 has 6 divisors (see below), whose sum is σ = 25829272410. Its totient is φ = 19032095376.

The previous prime is 22204111309. The next prime is 22204111327. The reversal of 22204111321 is 12311140222.

It can be written as a sum of positive squares in only one way, i.e., 13243406400 + 8960704921 = 115080^2 + 94661^2 .

It is a de Polignac number, because none of the positive numbers 2^k-22204111321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22204111327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 226572516 + ... + 226572613.

It is an arithmetic number, because the mean of its divisors is an integer number (4304878735).

Almost surely, 2^22204111321 is an apocalyptic number.

It is an amenable number.

22204111321 is a deficient number, since it is larger than the sum of its proper divisors (3625161089).

22204111321 is an equidigital number, since it uses as much as digits as its factorization.

22204111321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453145143 (or 453145136 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 22204111321 its reverse (12311140222), we get a palindrome (34515251543).

The spelling of 22204111321 in words is "twenty-two billion, two hundred four million, one hundred eleven thousand, three hundred twenty-one".