12221323312232 has 32 divisors (see below), whose sum is σ = 23049168597000. Its totient is φ = 6074900582400.

The previous prime is 12221323312201. The next prime is 12221323312291. The reversal of 12221323312232 is 23221332312221.

It can be written as a sum of positive squares in 4 ways, for example, as 11754022555396 + 467300756836 = 3428414^2 + 683594^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12221323312195 and 12221323312204.

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, 3015644 + ... + 5791092.

Almost surely, 2^{12221323312232} is an apocalyptic number.

It is an amenable number.

12221323312232 is a deficient number, since it is larger than the sum of its proper divisors (10827845284768).

12221323312232 is a wasteful number, since it uses less digits than its factorization.

12221323312232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2778677 (or 2778673 counting only the distinct ones).

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

Adding to 12221323312232 its reverse (23221332312221), we get a palindrome (35442655624453).

The spelling of 12221323312232 in words is "twelve trillion, two hundred twenty-one billion, three hundred twenty-three million, three hundred twelve thousand, two hundred thirty-two".