121030204200 has 192 divisors, whose sum is σ = 394735360320. Its totient is φ = 30636288000.

The previous prime is 121030204199. The next prime is 121030204213. The reversal of 121030204200 is 2402030121.

121030204200 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 121030204200.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 843715 + ... + 976685.

It is an arithmetic number, because the mean of its divisors is an integer number (2055913335).

Almost surely, 2^121030204200 is an apocalyptic number.

121030204200 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 121030204200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197367680160).

121030204200 is an abundant number, since it is smaller than the sum of its proper divisors (273705156120).

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

121030204200 is a wasteful number, since it uses less digits than its factorization.

121030204200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133068 (or 133059 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 121030204200 its reverse (2402030121), we get a palindrome (123432234321).

The spelling of 121030204200 in words is "one hundred twenty-one billion, thirty million, two hundred four thousand, two hundred".