22225892009 has 8 divisors (see below), whose sum is σ = 22694825160. Its totient is φ = 21758795136.

The previous prime is 22225891997. The next prime is 22225892011. The reversal of 22225892009 is 90029852222.

It can be written as a sum of positive squares in 4 ways, for example, as 15237433600 + 6988458409 = 123440^2 + 83597^2 .

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 22225892009 - 2²⁸ = 21957456553 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22225892069) 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, 434594 + ... + 483035.

It is an arithmetic number, because the mean of its divisors is an integer number (2836853145).

Almost surely, 2^22225892009 is an apocalyptic number.

It is an amenable number.

22225892009 is a deficient number, since it is larger than the sum of its proper divisors (468933151).

22225892009 is an equidigital number, since it uses as much as digits as its factorization.

22225892009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918139.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 22225892009 in words is "twenty-two billion, two hundred twenty-five million, eight hundred ninety-two thousand, nine".