121103200200 has 192 divisors, whose sum is σ = 379826314560. Its totient is φ = 31916113920.

The previous prime is 121103200181. The next prime is 121103200201. The reversal of 121103200200 is 2002301121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (121103200201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 69082524 + ... + 69084276.

It is an arithmetic number, because the mean of its divisors is an integer number (1978262055).

Almost surely, 2^121103200200 is an apocalyptic number.

121103200200 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 121103200200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189913157280).

121103200200 is an abundant number, since it is smaller than the sum of its proper divisors (258723114360).

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

121103200200 is a wasteful number, since it uses less digits than its factorization.

121103200200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3056 (or 3047 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 121103200200 its reverse (2002301121), we get a palindrome (123105501321).

The spelling of 121103200200 in words is "one hundred twenty-one billion, one hundred three million, two hundred thousand, two hundred".