12213550031200 has 144 divisors (see below), whose sum is σ = 35557361683200. Its totient is φ = 4005437483520.

The previous prime is 12213550031197. The next prime is 12213550031213. The reversal of 12213550031200 is 213005531221.

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 polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47284050 + ... + 47541649.

It is an arithmetic number, because the mean of its divisors is an integer number (246926122800).

Almost surely, 2^{12213550031200} is an apocalyptic number.

12213550031200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12213550031200 is an abundant number, since it is smaller than the sum of its proper divisors (23343811652000).

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

12213550031200 is a wasteful number, since it uses less digits than its factorization.

12213550031200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94825749 (or 94825736 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 12213550031200 its reverse (213005531221), we get a palindrome (12426555562421).

The spelling of 12213550031200 in words is "twelve trillion, two hundred thirteen billion, five hundred fifty million, thirty-one thousand, two hundred".