22042232009 has 4 divisors (see below), whose sum is σ = 25191122304. Its totient is φ = 18893341716.

The previous prime is 22042231951. The next prime is 22042232029. The reversal of 22042232009 is 90023224022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22042232009 - 2²⁰ = 22041183433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22042232029) 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, 1574445137 + ... + 1574445150.

It is an arithmetic number, because the mean of its divisors is an integer number (6297780576).

Almost surely, 2^22042232009 is an apocalyptic number.

It is an amenable number.

22042232009 is a deficient number, since it is larger than the sum of its proper divisors (3148890295).

22042232009 is an equidigital number, since it uses as much as digits as its factorization.

22042232009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3148890294.

The product of its (nonzero) digits is 3456, while the sum is 26.

The spelling of 22042232009 in words is "twenty-two billion, forty-two million, two hundred thirty-two thousand, nine".