22225013213 has 8 divisors (see below), whose sum is σ = 24518401656. Its totient is φ = 20015020800.

The previous prime is 22225013191. The next prime is 22225013233. The reversal of 22225013213 is 31231052222.

It can be written as a sum of positive squares in 4 ways, for example, as 308283364 + 21916729849 = 17558^2 + 148043^2 .

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 22225013213 - 2¹² = 22225009117 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 (22225013233) 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, 20848448 + ... + 20849513.

It is an arithmetic number, because the mean of its divisors is an integer number (3064800207).

Almost surely, 2^22225013213 is an apocalyptic number.

It is an amenable number.

22225013213 is a deficient number, since it is larger than the sum of its proper divisors (2293388443).

22225013213 is a wasteful number, since it uses less digits than its factorization.

22225013213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41698015.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 22225013213 its reverse (31231052222), we get a palindrome (53456065435).

The spelling of 22225013213 in words is "twenty-two billion, two hundred twenty-five million, thirteen thousand, two hundred thirteen".