111110111211102 has 192 divisors, whose sum is σ = 245279475302400. Its totient is φ = 33509625065280.

The previous prime is 111110111211079. The next prime is 111110111211161. The reversal of 111110111211102 is 201112111011111.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15590021863 + ... + 15590028989.

It is an arithmetic number, because the mean of its divisors is an integer number (1277497267200).

Almost surely, 2^{111110111211102} is an apocalyptic number.

111110111211102 is an abundant number, since it is smaller than the sum of its proper divisors (134169364091298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111110111211102 is a wasteful number, since it uses less digits than its factorization.

111110111211102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10219 (or 10200 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 15.

Adding to 111110111211102 its reverse (201112111011111), we get a palindrome (312222222222213).

The spelling of 111110111211102 in words is "one hundred eleven trillion, one hundred ten billion, one hundred eleven million, two hundred eleven thousand, one hundred two".