12221323321232 has 40 divisors (see below), whose sum is σ = 24229849443360. Its totient is φ = 5968463235840.

The previous prime is 12221323321217. The next prime is 12221323321243. The reversal of 12221323321232 is 23212332312221.

It is a junction number, because it is equal to n+sod(n) for n = 12221323321195 and 12221323321204.

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, 82877807 + ... + 83025137.

It is an arithmetic number, because the mean of its divisors is an integer number (605746236084).

Almost surely, 2^{12221323321232} is an apocalyptic number.

It is an amenable number.

12221323321232 is a deficient number, since it is larger than the sum of its proper divisors (12008526122128).

12221323321232 is a wasteful number, since it uses less digits than its factorization.

12221323321232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267951 (or 267945 counting only the distinct ones).

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

Adding to 12221323321232 its reverse (23212332312221), we get a palindrome (35433655633453).

The spelling of 12221323321232 in words is "twelve trillion, two hundred twenty-one billion, three hundred twenty-three million, three hundred twenty-one thousand, two hundred thirty-two".