2222222122222 has 32 divisors (see below), whose sum is σ = 3558012715008. Its totient is φ = 1037280940416.

The previous prime is 2222222122213. The next prime is 2222222122249. The reversal of 2222222122222 is 2222212222222.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19663963 + ... + 19776649.

It is an arithmetic number, because the mean of its divisors is an integer number (111187897344).

Almost surely, 2^{2222222122222} is an apocalyptic number.

2222222122222 is a deficient number, since it is larger than the sum of its proper divisors (1335790592786).

2222222122222 is a wasteful number, since it uses less digits than its factorization.

2222222122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117400.

The product of its digits is 4096, while the sum is 25.

Adding to 2222222122222 its reverse (2222212222222), we get a palindrome (4444434344444).

It can be divided in two parts, 22 and 22222122222, that multiplied together give a palindrome (488886688884).

The spelling of 2222222122222 in words is "two trillion, two hundred twenty-two billion, two hundred twenty-two million, one hundred twenty-two thousand, two hundred twenty-two".