111211011111122 has 16 divisors (see below), whose sum is σ = 181812996852480. Its totient is φ = 50709747419472.

The previous prime is 111211011111091. The next prime is 111211011111191. The reversal of 111211011111122 is 221111110112111.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 111211011111122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25767145922 + ... + 25767150237.

It is an arithmetic number, because the mean of its divisors is an integer number (11363312303280).

Almost surely, 2^{111211011111122} is an apocalyptic number.

111211011111122 is a deficient number, since it is larger than the sum of its proper divisors (70601985741358).

111211011111122 is a wasteful number, since it uses less digits than its factorization.

111211011111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51534296257.

The product of its (nonzero) digits is 8, while the sum is 17.

Adding to 111211011111122 its reverse (221111110112111), we get a palindrome (332322121223233).

The spelling of 111211011111122 in words is "one hundred eleven trillion, two hundred eleven billion, eleven million, one hundred eleven thousand, one hundred twenty-two".