13220220032 has 32 divisors (see below), whose sum is σ = 26342340480. Its totient is φ = 6608809216.

The previous prime is 13220219963. The next prime is 13220220037. The reversal of 13220220032 is 23002202231.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (13220220037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1288073 + ... + 1298295.

It is an arithmetic number, because the mean of its divisors is an integer number (823198140).

Almost surely, 2^13220220032 is an apocalyptic number.

It is an amenable number.

13220220032 is a deficient number, since it is larger than the sum of its proper divisors (13122120448).

13220220032 is a wasteful number, since it uses less digits than its factorization.

13220220032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20340 (or 20328 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 13220220032 its reverse (23002202231), we get a palindrome (36222422263).

The spelling of 13220220032 in words is "thirteen billion, two hundred twenty million, two hundred twenty thousand, thirty-two".