121443200 has 48 divisors (see below), whose sum is σ = 300010560. Its totient is φ = 48576000.

The previous prime is 121443199. The next prime is 121443209. The reversal of 121443200 is 2344121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121443209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15776 + ... + 22175.

It is an arithmetic number, because the mean of its divisors is an integer number (6250220).

Almost surely, 2^121443200 is an apocalyptic number.

121443200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121443200 is an abundant number, since it is smaller than the sum of its proper divisors (178567360).

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

121443200 is an equidigital number, since it uses as much as digits as its factorization.

121443200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37975 (or 37958 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 121443200 is about 11020.1270410100. The cubic root of 121443200 is about 495.2118944531.

Adding to 121443200 its reverse (2344121), we get a palindrome (123787321).

The spelling of 121443200 in words is "one hundred twenty-one million, four hundred forty-three thousand, two hundred".