12421442200 has 72 divisors (see below), whose sum is σ = 29362813740. Its totient is φ = 4886832000.

The previous prime is 12421442191. The next prime is 12421442213. The reversal of 12421442200 is 224412421.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 735855 + ... + 752545.

Almost surely, 2^12421442200 is an apocalyptic number.

12421442200 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 12421442200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14681406870).

12421442200 is an abundant number, since it is smaller than the sum of its proper divisors (16941371540).

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

12421442200 is a wasteful number, since it uses less digits than its factorization.

12421442200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16829 (or 16759 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 12421442200 its reverse (224412421), we get a palindrome (12645854621).

The spelling of 12421442200 in words is "twelve billion, four hundred twenty-one million, four hundred forty-two thousand, two hundred".