12221333332 has 12 divisors (see below), whose sum is σ = 23032512916. Its totient is φ = 5640615360.

The previous prime is 12221333309. The next prime is 12221333353. The reversal of 12221333332 is 23333312221.

It can be written as a sum of positive squares in 2 ways, for example, as 5000752656 + 7220580676 = 70716^2 + 84974^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12221333297 and 12221333306.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117512769 + ... + 117512872.

Almost surely, 2^12221333332 is an apocalyptic number.

It is an amenable number.

12221333332 is a deficient number, since it is larger than the sum of its proper divisors (10811179584).

12221333332 is a wasteful number, since it uses less digits than its factorization.

12221333332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235025658 (or 235025656 counting only the distinct ones).

The product of its digits is 3888, while the sum is 25.

Adding to 12221333332 its reverse (23333312221), we get a palindrome (35554645553).

The spelling of 12221333332 in words is "twelve billion, two hundred twenty-one million, three hundred thirty-three thousand, three hundred thirty-two".