12222312211200 has 1728 divisors, whose sum is σ = 51003620003840. Its totient is φ = 2509182074880.

The previous prime is 12222312211199. The next prime is 12222312211247. The reversal of 12222312211200 is 211221322221.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 10076101794 + ... + 10076103006.

Almost surely, 2^{12222312211200} is an apocalyptic number.

12222312211200 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 12222312211200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25501810001920).

12222312211200 is an abundant number, since it is smaller than the sum of its proper divisors (38781307792640).

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

12222312211200 is a wasteful number, since it uses less digits than its factorization.

12222312211200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414 (or 1395 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12222312211200 its reverse (211221322221), we get a palindrome (12433533533421).

The spelling of 12222312211200 in words is "twelve trillion, two hundred twenty-two billion, three hundred twelve million, two hundred eleven thousand, two hundred".