12221032332 has 48 divisors (see below), whose sum is σ = 31051641600. Its totient is φ = 3726192960.

The previous prime is 12221032331. The next prime is 12221032363. The reversal of 12221032332 is 23323012221.

It is a happy number.

12221032332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12221032299 and 12221032308.

It is not an unprimeable number, because it can be changed into a prime (12221032331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 917544 + ... + 930767.

It is an arithmetic number, because the mean of its divisors is an integer number (646909200).

Almost surely, 2^12221032332 is an apocalyptic number.

12221032332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12221032332 is an abundant number, since it is smaller than the sum of its proper divisors (18830609268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12221032332 is a wasteful number, since it uses less digits than its factorization.

12221032332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1848366 (or 1848364 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12221032332 its reverse (23323012221), we get a palindrome (35544044553).

The spelling of 12221032332 in words is "twelve billion, two hundred twenty-one million, thirty-two thousand, three hundred thirty-two".