111112110101121 has 48 divisors (see below), whose sum is σ = 156530646591744. Its totient is φ = 70055352576000.

The previous prime is 111112110101059. The next prime is 111112110101287. The reversal of 111112110101121 is 121101011211111.

It is a happy number.

It is not a de Polignac number, because 111112110101121 - 2⁹ = 111112110100609 is a prime.

It is a super-2 number, since 2×111112110101121² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111112110101121.

It is not an unprimeable number, because it can be changed into a prime (111112110101521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49467481 + ... + 51664841.

It is an arithmetic number, because the mean of its divisors is an integer number (3261055137328).

Almost surely, 2^{111112110101121} is an apocalyptic number.

It is an amenable number.

111112110101121 is a deficient number, since it is larger than the sum of its proper divisors (45418536490623).

111112110101121 is a wasteful number, since it uses less digits than its factorization.

111112110101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2197754 (or 2197713 counting only the distinct ones).

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

Adding to 111112110101121 its reverse (121101011211111), we get a palindrome (232213121312232).

It can be divided in two parts, 1111 and 12110101121, that multiplied together give a palindrome (13454322345431).

The spelling of 111112110101121 in words is "one hundred eleven trillion, one hundred twelve billion, one hundred ten million, one hundred one thousand, one hundred twenty-one".