12213320323232 has 72 divisors (see below), whose sum is σ = 27977658539040. Its totient is φ = 5232975054720.

The previous prime is 12213320323223. The next prime is 12213320323249. The reversal of 12213320323232 is 23232302331221.

It is a junction number, because it is equal to n+sod(n) for n = 12213320323195 and 12213320323204.

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 11 ways as a sum of consecutive naturals, for example, 5332757 + ... + 7270827.

It is an arithmetic number, because the mean of its divisors is an integer number (388578590820).

Almost surely, 2^{12213320323232} is an apocalyptic number.

It is an amenable number.

12213320323232 is an abundant number, since it is smaller than the sum of its proper divisors (15764338215808).

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

12213320323232 is a wasteful number, since it uses less digits than its factorization.

12213320323232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1942114 (or 1942099 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 12213320323232 its reverse (23232302331221), we get a palindrome (35445622654453).

The spelling of 12213320323232 in words is "twelve trillion, two hundred thirteen billion, three hundred twenty million, three hundred twenty-three thousand, two hundred thirty-two".