12421204233400 has 48 divisors (see below), whose sum is σ = 28899369518400. Its totient is φ = 4965028846080.

The previous prime is 12421204233397. The next prime is 12421204233409. The reversal of 12421204233400 is 433240212421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12421204233409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21291777 + ... + 21867376.

It is an arithmetic number, because the mean of its divisors is an integer number (602070198300).

Almost surely, 2^{12421204233400} is an apocalyptic number.

12421204233400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12421204233400 is an abundant number, since it is smaller than the sum of its proper divisors (16478165285000).

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

12421204233400 is a wasteful number, since it uses less digits than its factorization.

12421204233400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43160608 (or 43160599 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 12421204233400 its reverse (433240212421), we get a palindrome (12854444445821).

The spelling of 12421204233400 in words is "twelve trillion, four hundred twenty-one billion, two hundred four million, two hundred thirty-three thousand, four hundred".