121111330200 has 288 divisors, whose sum is σ = 437462692560. Its totient is φ = 27636940800.

The previous prime is 121111330133. The next prime is 121111330213. The reversal of 121111330200 is 2033111121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 121111330200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 19783140 + ... + 19789260.

Almost surely, 2^121111330200 is an apocalyptic number.

121111330200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121111330200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218731346280).

121111330200 is an abundant number, since it is smaller than the sum of its proper divisors (316351362360).

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

121111330200 is a wasteful number, since it uses less digits than its factorization.

121111330200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6827 (or 6811 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 121111330200 its reverse (2033111121), we get a palindrome (123144441321).

The spelling of 121111330200 in words is "one hundred twenty-one billion, one hundred eleven million, three hundred thirty thousand, two hundred".