12221322332312 has 8 divisors (see below), whose sum is σ = 22914979373100. Its totient is φ = 6110661166152.

The previous prime is 12221322332267. The next prime is 12221322332341. The reversal of 12221322332312 is 21323322312221.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 763832645762 + ... + 763832645777.

Almost surely, 2^{12221322332312} is an apocalyptic number.

It is an amenable number.

12221322332312 is a deficient number, since it is larger than the sum of its proper divisors (10693657040788).

12221322332312 is a wasteful number, since it uses less digits than its factorization.

12221322332312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527665291545 (or 1527665291541 counting only the distinct ones).

The product of its digits is 10368, while the sum is 29.

Adding to 12221322332312 its reverse (21323322312221), we get a palindrome (33544644644533).

The spelling of 12221322332312 in words is "twelve trillion, two hundred twenty-one billion, three hundred twenty-two million, three hundred thirty-two thousand, three hundred twelve".