12221313032312 has 32 divisors (see below), whose sum is σ = 22950113130000. Its totient is φ = 6101284996608.

The previous prime is 12221313032311. The next prime is 12221313032359. The reversal of 12221313032312 is 21323031312221.

12221313032312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221313032311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47340239 + ... + 47597697.

Almost surely, 2^{12221313032312} is an apocalyptic number.

It is an amenable number.

12221313032312 is a deficient number, since it is larger than the sum of its proper divisors (10728800097688).

12221313032312 is a wasteful number, since it uses less digits than its factorization.

12221313032312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266543 (or 266539 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 12221313032312 its reverse (21323031312221), we get a palindrome (33544344344533).

The spelling of 12221313032312 in words is "twelve trillion, two hundred twenty-one billion, three hundred thirteen million, thirty-two thousand, three hundred twelve".