121130242200 has 144 divisors (see below), whose sum is σ = 443777232600. Its totient is φ = 29364902400.

The previous prime is 121130242159. The next prime is 121130242201. The reversal of 121130242200 is 2242031121.

It is a happy number.

121130242200 is a `hidden beast` number, since 1 + 211 + 30 + 2 + 422 + 0 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121130242201) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3039045 + ... + 3078644.

Almost surely, 2^121130242200 is an apocalyptic number.

121130242200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121130242200 is an abundant number, since it is smaller than the sum of its proper divisors (322646990400).

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

121130242200 is a wasteful number, since it uses less digits than its factorization.

121130242200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6117722 (or 6117710 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 121130242200 its reverse (2242031121), we get a palindrome (123372273321).

The spelling of 121130242200 in words is "one hundred twenty-one billion, one hundred thirty million, two hundred forty-two thousand, two hundred".