111112111122 has 32 divisors (see below), whose sum is σ = 227982541248. Its totient is φ = 36089876736.

The previous prime is 111112111079. The next prime is 111112111141. The reversal of 111112111122 is 221111211111.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1491843 + ... + 1564550.

It is an arithmetic number, because the mean of its divisors is an integer number (7124454414).

Almost surely, 2^111112111122 is an apocalyptic number.

111112111122 is an abundant number, since it is smaller than the sum of its proper divisors (116870430126).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111112111122 is a wasteful number, since it uses less digits than its factorization.

111112111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3056554.

The product of its digits is 8, while the sum is 15.

Adding to 111112111122 its reverse (221111211111), we get a palindrome (332223322233).

The spelling of 111112111122 in words is "one hundred eleven billion, one hundred twelve million, one hundred eleven thousand, one hundred twenty-two".