22204111213 has 4 divisors (see below), whose sum is σ = 23510235420. Its totient is φ = 20897987008.

The previous prime is 22204111207. The next prime is 22204111219. The reversal of 22204111213 is 31211140222.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (22204111207) and next prime (22204111219).

It can be written as a sum of positive squares in 2 ways, for example, as 18516949929 + 3687161284 = 136077^2 + 60722^2 .

It is a cyclic number.

It is not a de Polignac number, because 22204111213 - 2⁹ = 22204110701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22204111219) 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, 653062078 + ... + 653062111.

It is an arithmetic number, because the mean of its divisors is an integer number (5877558855).

Almost surely, 2^22204111213 is an apocalyptic number.

It is an amenable number.

22204111213 is a deficient number, since it is larger than the sum of its proper divisors (1306124207).

22204111213 is a wasteful number, since it uses less digits than its factorization.

22204111213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306124206.

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

Adding to 22204111213 its reverse (31211140222), we get a palindrome (53415251435).

The spelling of 22204111213 in words is "twenty-two billion, two hundred four million, one hundred eleven thousand, two hundred thirteen".