22222012209 has 8 divisors (see below), whose sum is σ = 29742009792. Its totient is φ = 14758344720.

The previous prime is 22222012201. The next prime is 22222012243. The reversal of 22222012209 is 90221022222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22222012209 - 2³ = 22222012201 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22222012201) 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, 14081602 + ... + 14083179.

It is an arithmetic number, because the mean of its divisors is an integer number (3717751224).

Almost surely, 2^22222012209 is an apocalyptic number.

It is an amenable number.

22222012209 is a deficient number, since it is larger than the sum of its proper divisors (7519997583).

22222012209 is a wasteful number, since it uses less digits than its factorization.

22222012209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28165047.

The product of its (nonzero) digits is 1152, while the sum is 24.

The spelling of 22222012209 in words is "twenty-two billion, two hundred twenty-two million, twelve thousand, two hundred nine".