3201132221 has 8 divisors (see below), whose sum is σ = 3733099200. Its totient is φ = 2743827324.

The previous prime is 3201132191. The next prime is 3201132223. The reversal of 3201132221 is 1222311023.

It is a de Polignac number, because none of the positive numbers 2^k-3201132221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3201132221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3201132223) 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, 4666031 + ... + 4666716.

It is an arithmetic number, because the mean of its divisors is an integer number (466637400).

Almost surely, 2^3201132221 is an apocalyptic number.

It is an amenable number.

3201132221 is a deficient number, since it is larger than the sum of its proper divisors (531966979).

3201132221 is an frugal number, since it uses more digits than its factorization.

3201132221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9332768 (or 9332754 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 3201132221 is about 56578.5491242043. The cubic root of 3201132221 is about 1473.7863763720.

Adding to 3201132221 its reverse (1222311023), we get a palindrome (4423443244).

The spelling of 3201132221 in words is "three billion, two hundred one million, one hundred thirty-two thousand, two hundred twenty-one".