111111112222 has 32 divisors (see below), whose sum is σ = 187888719744. Its totient is φ = 48842052000.

The previous prime is 111111112153. The next prime is 111111112261. The reversal of 111111112222 is 222211111111.

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

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 111111112196 and 111111112205.

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, 485908 + ... + 676999.

It is an arithmetic number, because the mean of its divisors is an integer number (5871522492).

Almost surely, 2^111111112222 is an apocalyptic number.

111111112222 is a deficient number, since it is larger than the sum of its proper divisors (76777607522).

111111112222 is a wasteful number, since it uses less digits than its factorization.

111111112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163064.

The product of its digits is 16, while the sum is 16.

Adding to 111111112222 its reverse (222211111111), we get a palindrome (333322223333).

It can be divided in two parts, 11111111 and 2222, that multiplied together give a palindrome (24688888642).

The spelling of 111111112222 in words is "one hundred eleven billion, one hundred eleven million, one hundred twelve thousand, two hundred twenty-two".