111112121020112 has 40 divisors (see below), whose sum is σ = 215864656920576. Its totient is φ = 55405296326016.

The previous prime is 111112121020099. The next prime is 111112121020169. The reversal of 111112121020112 is 211020121211111.

It is a congruent number.

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, 3952433 + ... + 15422255.

Almost surely, 2^{111112121020112} is an apocalyptic number.

It is an amenable number.

111112121020112 is a deficient number, since it is larger than the sum of its proper divisors (104752535900464).

111112121020112 is a wasteful number, since it uses less digits than its factorization.

111112121020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11471475 (or 11471469 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 111112121020112 its reverse (211020121211111), we get a palindrome (322132242231223).

The spelling of 111112121020112 in words is "one hundred eleven trillion, one hundred twelve billion, one hundred twenty-one million, twenty thousand, one hundred twelve".