22224520209 has 4 divisors (see below), whose sum is σ = 29632693616. Its totient is φ = 14816346804.

The previous prime is 22224520187. The next prime is 22224520237. The reversal of 22224520209 is 90202542222.

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 not a de Polignac number, because 22224520209 - 2¹⁶ = 22224454673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22224520289) 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, 3704086699 + ... + 3704086704.

It is an arithmetic number, because the mean of its divisors is an integer number (7408173404).

Almost surely, 2^22224520209 is an apocalyptic number.

It is an amenable number.

22224520209 is a deficient number, since it is larger than the sum of its proper divisors (7408173407).

22224520209 is an equidigital number, since it uses as much as digits as its factorization.

22224520209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7408173406.

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 22224520209 in words is "twenty-two billion, two hundred twenty-four million, five hundred twenty thousand, two hundred nine".