12221304332 has 6 divisors (see below), whose sum is σ = 21387282588. Its totient is φ = 6110652164.

The previous prime is 12221304331. The next prime is 12221304341. The reversal of 12221304332 is 23340312221.

It is a junction number, because it is equal to n+sod(n) for n = 12221304298 and 12221304307.

It is not an unprimeable number, because it can be changed into a prime (12221304331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1527663038 + ... + 1527663045.

It is an arithmetic number, because the mean of its divisors is an integer number (3564547098).

Almost surely, 2^12221304332 is an apocalyptic number.

It is an amenable number.

12221304332 is a deficient number, since it is larger than the sum of its proper divisors (9165978256).

12221304332 is a wasteful number, since it uses less digits than its factorization.

12221304332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3055326087 (or 3055326085 counting only the distinct ones).

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

Adding to 12221304332 its reverse (23340312221), we get a palindrome (35561616553).

The spelling of 12221304332 in words is "twelve billion, two hundred twenty-one million, three hundred four thousand, three hundred thirty-two".