12421043224000 has 112 divisors (see below), whose sum is σ = 31077836244000. Its totient is φ = 4917196185600.

The previous prime is 12421043223971. The next prime is 12421043224043. The reversal of 12421043224000 is 42234012421.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7227250 + ... + 8779249.

It is an arithmetic number, because the mean of its divisors is an integer number (277480680750).

Almost surely, 2^{12421043224000} is an apocalyptic number.

12421043224000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12421043224000 is an abundant number, since it is smaller than the sum of its proper divisors (18656793020000).

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

12421043224000 is an equidigital number, since it uses as much as digits as its factorization.

12421043224000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16006623 (or 16006603 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 12421043224000 its reverse (42234012421), we get a palindrome (12463277236421).

The spelling of 12421043224000 in words is "twelve trillion, four hundred twenty-one billion, forty-three million, two hundred twenty-four thousand".