111110111012 has 12 divisors (see below), whose sum is σ = 194456801280. Its totient is φ = 55551024936.

The previous prime is 111110110981. The next prime is 111110111027. The reversal of 111110111012 is 210111011111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111110110984 and 111110111002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 945188 + ... + 1056219.

It is an arithmetic number, because the mean of its divisors is an integer number (16204733440).

Almost surely, 2^111110111012 is an apocalyptic number.

It is an amenable number.

111110111012 is a deficient number, since it is larger than the sum of its proper divisors (83346690268).

111110111012 is a wasteful number, since it uses less digits than its factorization.

111110111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015290 (or 2015288 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 111110111012 its reverse (210111011111), we get a palindrome (321221122123).

Subtracting 111110111012 from its reverse (210111011111), we obtain a palindrome (99000900099).

The spelling of 111110111012 in words is "one hundred eleven billion, one hundred ten million, one hundred eleven thousand, twelve".