22122200209 has 4 divisors (see below), whose sum is σ = 22157939440. Its totient is φ = 22086460980.

The previous prime is 22122200201. The next prime is 22122200227. The reversal of 22122200209 is 90200222122.

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 22122200209 - 2³ = 22122200201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22122200209.

It is not an unprimeable number, because it can be changed into a prime (22122200201) 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, 17868687 + ... + 17869924.

It is an arithmetic number, because the mean of its divisors is an integer number (5539484860).

Almost surely, 2^22122200209 is an apocalyptic number.

It is an amenable number.

22122200209 is a deficient number, since it is larger than the sum of its proper divisors (35739231).

22122200209 is an equidigital number, since it uses as much as digits as its factorization.

22122200209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35739230.

The product of its (nonzero) digits is 576, while the sum is 22.

The spelling of 22122200209 in words is "twenty-two billion, one hundred twenty-two million, two hundred thousand, two hundred nine".