111222222122 has 32 divisors (see below), whose sum is σ = 184760498880. Its totient is φ = 49789111680.

The previous prime is 111222222107. The next prime is 111222222149. The reversal of 111222222122 is 221222222111.

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

It is a junction number, because it is equal to n+sod(n) for n = 111222222094 and 111222222103.

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, 9777254 + ... + 9788622.

It is an arithmetic number, because the mean of its divisors is an integer number (5773765590).

Almost surely, 2^111222222122 is an apocalyptic number.

111222222122 is a deficient number, since it is larger than the sum of its proper divisors (73538276758).

111222222122 is a wasteful number, since it uses less digits than its factorization.

111222222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18086.

The product of its digits is 256, while the sum is 20.

Adding to 111222222122 its reverse (221222222111), we get a palindrome (332444444233).

The spelling of 111222222122 in words is "one hundred eleven billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred twenty-two".