111111201112 has 64 divisors (see below), whose sum is σ = 219086208000. Its totient is φ = 52754249856.

The previous prime is 111111201049. The next prime is 111111201163. The reversal of 111111201112 is 211102111111.

It is a junction number, because it is equal to n+sod(n) for n = 111111201092 and 111111201101.

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, 10238073 + ... + 10248919.

It is an arithmetic number, because the mean of its divisors is an integer number (3423222000).

Almost surely, 2^111111201112 is an apocalyptic number.

It is an amenable number.

111111201112 is a deficient number, since it is larger than the sum of its proper divisors (107975006888).

111111201112 is a wasteful number, since it uses less digits than its factorization.

111111201112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11608 (or 11604 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 111111201112 its reverse (211102111111), we get a palindrome (322213312223).

Subtracting 111111201112 from its reverse (211102111111), we obtain a palindrome (99990909999).

The spelling of 111111201112 in words is "one hundred eleven billion, one hundred eleven million, two hundred one thousand, one hundred twelve".