12211213132312 has 32 divisors (see below), whose sum is σ = 23119456258080. Its totient is φ = 6046030644480.

The previous prime is 12211213132289. The next prime is 12211213132381. The reversal of 12211213132312 is 21323131211221.

It is a super-2 number, since 2×12211213132312² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16844362 + ... + 17554342.

It is an arithmetic number, because the mean of its divisors is an integer number (722483008065).

Almost surely, 2^{12211213132312} is an apocalyptic number.

It is an amenable number.

12211213132312 is a deficient number, since it is larger than the sum of its proper divisors (10908243125768).

12211213132312 is a wasteful number, since it uses less digits than its factorization.

12211213132312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730963 (or 730959 counting only the distinct ones).

The product of its digits is 864, while the sum is 25.

Adding to 12211213132312 its reverse (21323131211221), we get a palindrome (33534344343533).

The spelling of 12211213132312 in words is "twelve trillion, two hundred eleven billion, two hundred thirteen million, one hundred thirty-two thousand, three hundred twelve".