121112200020112 has 40 divisors (see below), whose sum is σ = 282291594036800. Its totient is φ = 49173374443392.

The previous prime is 121112200020083. The next prime is 121112200020209. The reversal of 121112200020112 is 211020002211121.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28456811787 + ... + 28456816042.

It is an arithmetic number, because the mean of its divisors is an integer number (7057289850920).

Almost surely, 2^{121112200020112} is an apocalyptic number.

It is an amenable number.

121112200020112 is an abundant number, since it is smaller than the sum of its proper divisors (161179394016688).

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

121112200020112 is a wasteful number, since it uses less digits than its factorization.

121112200020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56913627863 (or 56913627857 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121112200020112 its reverse (211020002211121), we get a palindrome (332132202231233).

The spelling of 121112200020112 in words is "one hundred twenty-one trillion, one hundred twelve billion, two hundred million, twenty thousand, one hundred twelve".