111001111112 has 16 divisors (see below), whose sum is σ = 208135229100. Its totient is φ = 55498383360.

The previous prime is 111001111103. The next prime is 111001111129. The reversal of 111001111112 is 211111100111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 110991587716 + 9523396 = 333154^2 + 3086^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111001111093 and 111001111102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43037 + ... + 473132.

Almost surely, 2^111001111112 is an apocalyptic number.

It is an amenable number.

111001111112 is a deficient number, since it is larger than the sum of its proper divisors (97134117988).

111001111112 is a wasteful number, since it uses less digits than its factorization.

111001111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543056 (or 543052 counting only the distinct ones).

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

Adding to 111001111112 its reverse (211111100111), we get a palindrome (322112211223).

The spelling of 111001111112 in words is "one hundred eleven billion, one million, one hundred eleven thousand, one hundred twelve".