121200396 has 48 divisors (see below), whose sum is σ = 297561600. Its totient is φ = 38339392.

The previous prime is 121200383. The next prime is 121200397. The reversal of 121200396 is 693002121.

It is not an unprimeable number, because it can be changed into a prime (121200397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17581 + ... + 23483.

It is an arithmetic number, because the mean of its divisors is an integer number (6199200).

Almost surely, 2^121200396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121200396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148780800).

121200396 is an abundant number, since it is smaller than the sum of its proper divisors (176361204).

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

121200396 is a wasteful number, since it uses less digits than its factorization.

121200396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5998 (or 5996 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 121200396 is about 11009.1051407460. The cubic root of 121200396 is about 494.8816450021.

The spelling of 121200396 in words is "one hundred twenty-one million, two hundred thousand, three hundred ninety-six".