12321213213222 has 96 divisors (see below), whose sum is σ = 28687399603200. Its totient is φ = 3813032336256.

The previous prime is 12321213213217. The next prime is 12321213213271. The reversal of 12321213213222 is 22231231212321.

12321213213222 is a `hidden beast` number, since 1 + 2 + 3 + 2 + 12 + 1 + 321 + 322 + 2 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1262943 + ... + 5122250.

It is an arithmetic number, because the mean of its divisors is an integer number (298827079200).

Almost surely, 2^{12321213213222} is an apocalyptic number.

12321213213222 is an abundant number, since it is smaller than the sum of its proper divisors (16366186389978).

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

12321213213222 is a wasteful number, since it uses less digits than its factorization.

12321213213222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6385362 (or 6385359 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 12321213213222 its reverse (22231231212321), we get a palindrome (34552444425543).

The spelling of 12321213213222 in words is "twelve trillion, three hundred twenty-one billion, two hundred thirteen million, two hundred thirteen thousand, two hundred twenty-two".