32013232221 has 16 divisors (see below), whose sum is σ = 44935308800. Its totient is φ = 20216878128.

The previous prime is 32013232217. The next prime is 32013232231. The reversal of 32013232221 is 12223231023.

It is a happy number.

It is not a de Polignac number, because 32013232221 - 2² = 32013232217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32013232201) 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, 732240 + ... + 774726.

It is an arithmetic number, because the mean of its divisors is an integer number (2808456800).

Almost surely, 2^32013232221 is an apocalyptic number.

It is an amenable number.

32013232221 is a deficient number, since it is larger than the sum of its proper divisors (12922076579).

32013232221 is a wasteful number, since it uses less digits than its factorization.

32013232221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55728.

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

Adding to 32013232221 its reverse (12223231023), we get a palindrome (44236463244).

The spelling of 32013232221 in words is "thirty-two billion, thirteen million, two hundred thirty-two thousand, two hundred twenty-one".