12321021042200 has 48 divisors (see below), whose sum is σ = 30849941154480. Its totient is φ = 4549300076160.

The previous prime is 12321021042131. The next prime is 12321021042221. The reversal of 12321021042200 is 224012012321.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2369424524 + ... + 2369429723.

It is an arithmetic number, because the mean of its divisors is an integer number (642707107385).

Almost surely, 2^{12321021042200} is an apocalyptic number.

12321021042200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12321021042200 is an abundant number, since it is smaller than the sum of its proper divisors (18528920112280).

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

12321021042200 is a wasteful number, since it uses less digits than its factorization.

12321021042200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4738854276 (or 4738854267 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12321021042200 its reverse (224012012321), we get a palindrome (12545033054521).

The spelling of 12321021042200 in words is "twelve trillion, three hundred twenty-one billion, twenty-one million, forty-two thousand, two hundred".