111111011222 has 32 divisors (see below), whose sum is σ = 171600418080. Its totient is φ = 53933651200.

The previous prime is 111111011203. The next prime is 111111011279. The reversal of 111111011222 is 222110111111.

It is a junction number, because it is equal to n+sod(n) for n = 111111011197 and 111111011206.

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, 29214773 + ... + 29218575.

It is an arithmetic number, because the mean of its divisors is an integer number (5362513065).

Almost surely, 2^111111011222 is an apocalyptic number.

111111011222 is a deficient number, since it is larger than the sum of its proper divisors (60489406858).

111111011222 is a wasteful number, since it uses less digits than its factorization.

111111011222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6688.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111111011222 its reverse (222110111111), we get a palindrome (333221122333).

The spelling of 111111011222 in words is "one hundred eleven billion, one hundred eleven million, eleven thousand, two hundred twenty-two".