111121233112 has 32 divisors (see below), whose sum is σ = 210018942000. Its totient is φ = 55117137024.

The previous prime is 111121233077. The next prime is 111121233137. The reversal of 111121233112 is 211332121111.

It is a self number, because there is not a number n which added to its sum of digits gives 111121233112.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 878878 + ... + 997330.

Almost surely, 2^111121233112 is an apocalyptic number.

It is an amenable number.

111121233112 is a deficient number, since it is larger than the sum of its proper divisors (98897708888).

111121233112 is a wasteful number, since it uses less digits than its factorization.

111121233112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119395 (or 119391 counting only the distinct ones).

The product of its digits is 72, while the sum is 19.

Adding to 111121233112 its reverse (211332121111), we get a palindrome (322453354223).

The spelling of 111121233112 in words is "one hundred eleven billion, one hundred twenty-one million, two hundred thirty-three thousand, one hundred twelve".