222211211 has 12 divisors (see below), whose sum is σ = 234648960. Its totient is φ = 210394800.

The previous prime is 222211201. The next prime is 222211247. The reversal of 222211211 is 112112222.

It is not a de Polignac number, because 222211211 - 2¹⁴ = 222194827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222211201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51350 + ... + 55508.

It is an arithmetic number, because the mean of its divisors is an integer number (19554080).

Almost surely, 2^222211211 is an apocalyptic number.

222211211 is a deficient number, since it is larger than the sum of its proper divisors (12437749).

222211211 is a wasteful number, since it uses less digits than its factorization.

222211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4306 (or 4283 counting only the distinct ones).

The product of its digits is 32, while the sum is 14.

The square root of 222211211 is about 14906.7505178023. The cubic root of 222211211 is about 605.6968597528.

Adding to 222211211 its reverse (112112222), we get a palindrome (334323433).

It can be divided in two parts, 22221 and 1211, that added together give a palindrome (23432).

The spelling of 222211211 in words is "two hundred twenty-two million, two hundred eleven thousand, two hundred eleven".