12213321122312 has 32 divisors (see below), whose sum is σ = 23458857901920. Its totient is φ = 5957630060160.

The previous prime is 12213321122281. The next prime is 12213321122363. The reversal of 12213321122312 is 21322112331221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25883843 + ... + 26351469.

It is an arithmetic number, because the mean of its divisors is an integer number (733089309435).

Almost surely, 2^{12213321122312} is an apocalyptic number.

It is an amenable number.

12213321122312 is a deficient number, since it is larger than the sum of its proper divisors (11245536779608).

12213321122312 is a wasteful number, since it uses less digits than its factorization.

12213321122312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547301 (or 547297 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

Adding to 12213321122312 its reverse (21322112331221), we get a palindrome (33535433453533).

The spelling of 12213321122312 in words is "twelve trillion, two hundred thirteen billion, three hundred twenty-one million, one hundred twenty-two thousand, three hundred twelve".