121112116 has 12 divisors (see below), whose sum is σ = 213131520. Its totient is φ = 60217400.

The previous prime is 121112113. The next prime is 121112129. The reversal of 121112116 is 611211121.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 121112116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83860 + ... + 85291.

It is an arithmetic number, because the mean of its divisors is an integer number (17760960).

Almost surely, 2^121112116 is an apocalyptic number.

It is an amenable number.

121112116 is a deficient number, since it is larger than the sum of its proper divisors (92019404).

121112116 is a wasteful number, since it uses less digits than its factorization.

121112116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169334 (or 169332 counting only the distinct ones).

The product of its digits is 24, while the sum is 16.

The square root of 121112116 is about 11005.0950018616. The cubic root of 121112116 is about 494.7614617779.

Adding to 121112116 its reverse (611211121), we get a palindrome (732323237).

The spelling of 121112116 in words is "one hundred twenty-one million, one hundred twelve thousand, one hundred sixteen".