121131322200 has 216 divisors, whose sum is σ = 473215923180. Its totient is φ = 27687139200.

The previous prime is 121131322171. The next prime is 121131322259. The reversal of 121131322200 is 2223131121.

121131322200 is a `hidden beast` number, since 12 + 1 + 131 + 322 + 200 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 598486 + ... + 774885.

Almost surely, 2^121131322200 is an apocalyptic number.

121131322200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121131322200 is an abundant number, since it is smaller than the sum of its proper divisors (352084600980).

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

121131322200 is a wasteful number, since it uses less digits than its factorization.

121131322200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373407 (or 1373388 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 121131322200 its reverse (2223131121), we get a palindrome (123354453321).

The spelling of 121131322200 in words is "one hundred twenty-one billion, one hundred thirty-one million, three hundred twenty-two thousand, two hundred".