32030031221 has 16 divisors (see below), whose sum is σ = 32958030336. Its totient is φ = 31110682176.

The previous prime is 32030031191. The next prime is 32030031251. The reversal of 32030031221 is 12213003023.

It is an interprime number because it is at equal distance from previous prime (32030031191) and next prime (32030031251).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32030031221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32030031221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32030031251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16233191 + ... + 16235163.

It is an arithmetic number, because the mean of its divisors is an integer number (2059876896).

Almost surely, 2^32030031221 is an apocalyptic number.

It is an amenable number.

32030031221 is a deficient number, since it is larger than the sum of its proper divisors (927999115).

32030031221 is a wasteful number, since it uses less digits than its factorization.

32030031221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3932.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 32030031221 its reverse (12213003023), we get a palindrome (44243034244).

The spelling of 32030031221 in words is "thirty-two billion, thirty million, thirty-one thousand, two hundred twenty-one".