121332200 has 96 divisors (see below), whose sum is σ = 310828320. Its totient is φ = 43680000.

The previous prime is 121332193. The next prime is 121332203. The reversal of 121332200 is 2233121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (121332203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 287990 + ... + 288410.

It is an arithmetic number, because the mean of its divisors is an integer number (3237795).

Almost surely, 2^121332200 is an apocalyptic number.

121332200 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 121332200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155414160).

121332200 is an abundant number, since it is smaller than the sum of its proper divisors (189496120).

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

121332200 is a wasteful number, since it uses less digits than its factorization.

121332200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579 (or 570 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 121332200 is about 11015.0896501118. The cubic root of 121332200 is about 495.0609726613.

Adding to 121332200 its reverse (2233121), we get a palindrome (123565321).

The spelling of 121332200 in words is "one hundred twenty-one million, three hundred thirty-two thousand, two hundred".