121112121102200 has 48 divisors (see below), whose sum is σ = 290669090660160. Its totient is φ = 46882111392000.

The previous prime is 121112121102191. The next prime is 121112121102221. The reversal of 121112121102200 is 2201121211121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9767100341 + ... + 9767112740.

It is an arithmetic number, because the mean of its divisors is an integer number (6055606055420).

Almost surely, 2^{121112121102200} is an apocalyptic number.

121112121102200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121112121102200 is an abundant number, since it is smaller than the sum of its proper divisors (169556969557960).

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

121112121102200 is a wasteful number, since it uses less digits than its factorization.

121112121102200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19534213128 (or 19534213119 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121112121102200 its reverse (2201121211121), we get a palindrome (123313242313321).

The spelling of 121112121102200 in words is "one hundred twenty-one trillion, one hundred twelve billion, one hundred twenty-one million, one hundred two thousand, two hundred".