111121110111112 has 16 divisors (see below), whose sum is σ = 208352195366400. Its totient is φ = 55560524680080.

The previous prime is 111121110111083. The next prime is 111121110111119. The reversal of 111121110111112 is 211111011121111.

It is a super-2 number, since 2×111121110111112² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111121110111119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22308937 + ... + 26831527.

It is an arithmetic number, because the mean of its divisors is an integer number (13022012210400).

Almost surely, 2^{111121110111112} is an apocalyptic number.

It is an amenable number.

111121110111112 is a deficient number, since it is larger than the sum of its proper divisors (97231085255288).

111121110111112 is a wasteful number, since it uses less digits than its factorization.

111121110111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7593876 (or 7593872 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 16.

Adding to 111121110111112 its reverse (211111011121111), we get a palindrome (322232121232223).

The spelling of 111121110111112 in words is "one hundred eleven trillion, one hundred twenty-one billion, one hundred ten million, one hundred eleven thousand, one hundred twelve".