13220221032232 has 32 divisors (see below), whose sum is σ = 24864469404480. Its totient is φ = 6589724122240.

The previous prime is 13220221032209. The next prime is 13220221032233. The reversal of 13220221032232 is 23223012202231.

It is a junction number, because it is equal to n+sod(n) for n = 13220221032197 and 13220221032206.

It is not an unprimeable number, because it can be changed into a prime (13220221032233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1977573 + ... + 5509195.

It is an arithmetic number, because the mean of its divisors is an integer number (777014668890).

Almost surely, 2^{13220221032232} is an apocalyptic number.

It is an amenable number.

13220221032232 is a deficient number, since it is larger than the sum of its proper divisors (11644248372248).

13220221032232 is a wasteful number, since it uses less digits than its factorization.

13220221032232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3533073 (or 3533069 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 13220221032232 its reverse (23223012202231), we get a palindrome (36443233234463).

The spelling of 13220221032232 in words is "thirteen trillion, two hundred twenty billion, two hundred twenty-one million, thirty-two thousand, two hundred thirty-two".