121241200 has 60 divisors (see below), whose sum is σ = 297525600. Its totient is φ = 47457280.

The previous prime is 121241189. The next prime is 121241213. The reversal of 121241200 is 2142121.

It is a happy number.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15576 + ... + 22024.

It is an arithmetic number, because the mean of its divisors is an integer number (4958760).

Almost surely, 2^121241200 is an apocalyptic number.

121241200 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 121241200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148762800).

121241200 is an abundant number, since it is smaller than the sum of its proper divisors (176284400).

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

121241200 is a wasteful number, since it uses less digits than its factorization.

121241200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6514 (or 6503 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 121241200 is about 11010.9581781060. The cubic root of 121241200 is about 494.9371753073.

Adding to 121241200 its reverse (2142121), we get a palindrome (123383321).

The spelling of 121241200 in words is "one hundred twenty-one million, two hundred forty-one thousand, two hundred".