22224122211 has 4 divisors (see below), whose sum is σ = 29632162952. Its totient is φ = 14816081472.

The previous prime is 22224122171. The next prime is 22224122213. The reversal of 22224122211 is 11222142222.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 22224122211 - 2¹³ = 22224114019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22224122213) 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, 3704020366 + ... + 3704020371.

It is an arithmetic number, because the mean of its divisors is an integer number (7408040738).

Almost surely, 2^22224122211 is an apocalyptic number.

22224122211 is a deficient number, since it is larger than the sum of its proper divisors (7408040741).

22224122211 is an equidigital number, since it uses as much as digits as its factorization.

22224122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7408040740.

The product of its digits is 512, while the sum is 21.

Adding to 22224122211 its reverse (11222142222), we get a palindrome (33446264433).

The spelling of 22224122211 in words is "twenty-two billion, two hundred twenty-four million, one hundred twenty-two thousand, two hundred eleven".