121299200 has 108 divisors (see below), whose sum is σ = 327718608. Its totient is φ = 44083200.

The previous prime is 121299193. The next prime is 121299203. The reversal of 121299200 is 2992121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 121299200.

It is not an unprimeable number, because it can be changed into a prime (121299203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69539 + ... + 71261.

Almost surely, 2^121299200 is an apocalyptic number.

121299200 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 121299200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163859304).

121299200 is an abundant number, since it is smaller than the sum of its proper divisors (206419408).

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

121299200 is a wasteful number, since it uses less digits than its factorization.

121299200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760 (or 1741 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 121299200 is about 11013.5916031057. The cubic root of 121299200 is about 495.0160862711.

The spelling of 121299200 in words is "one hundred twenty-one million, two hundred ninety-nine thousand, two hundred".