111102120110121 has 96 divisors (see below), whose sum is σ = 178967144448000. Its totient is φ = 61064597986560.

The previous prime is 111102120110101. The next prime is 111102120110141. The reversal of 111102120110121 is 121011021201111.

It is an interprime number because it is at equal distance from previous prime (111102120110101) and next prime (111102120110141).

It is not a de Polignac number, because 111102120110121 - 2¹⁵ = 111102120077353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111102120110121.

It is not an unprimeable number, because it can be changed into a prime (111102120110101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 569513805 + ... + 569708853.

It is an arithmetic number, because the mean of its divisors is an integer number (1864241088000).

Almost surely, 2^{111102120110121} is an apocalyptic number.

It is an amenable number.

111102120110121 is a deficient number, since it is larger than the sum of its proper divisors (67865024337879).

111102120110121 is a wasteful number, since it uses less digits than its factorization.

111102120110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195859 (or 195852 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 111102120110121 its reverse (121011021201111), we get a palindrome (232113141311232).

The spelling of 111102120110121 in words is "one hundred eleven trillion, one hundred two billion, one hundred twenty million, one hundred ten thousand, one hundred twenty-one".