12232221332 has 12 divisors (see below), whose sum is σ = 21498261876. Its totient is φ = 6089860800.

The previous prime is 12232221317. The next prime is 12232221367. The reversal of 12232221332 is 23312223221.

It can be written as a sum of positive squares in 2 ways, for example, as 1656978436 + 10575242896 = 40706^2 + 102836^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12232221298 and 12232221307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6561419 + ... + 6563282.

It is an arithmetic number, because the mean of its divisors is an integer number (1791521823).

Almost surely, 2^12232221332 is an apocalyptic number.

It is an amenable number.

12232221332 is a deficient number, since it is larger than the sum of its proper divisors (9266040544).

12232221332 is a wasteful number, since it uses less digits than its factorization.

12232221332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13124938 (or 13124936 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

Adding to 12232221332 its reverse (23312223221), we get a palindrome (35544444553).

The spelling of 12232221332 in words is "twelve billion, two hundred thirty-two million, two hundred twenty-one thousand, three hundred thirty-two".