3201033221 has 4 divisors (see below), whose sum is σ = 3279107244. Its totient is φ = 3122959200.

The previous prime is 3201033181. The next prime is 3201033223. The reversal of 3201033221 is 1223301023.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 443313025 + 2757720196 = 21055^2 + 52514^2 .

It is a cyclic number.

It is not a de Polignac number, because 3201033221 - 2²⁶ = 3133924357 is a prime.

It is a super-2 number, since 2×3201033221² = 20493227363891269682, which contains 22 as substring.

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 3201033221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3201033223) 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 3 ways as a sum of consecutive naturals, for example, 39036950 + ... + 39037031.

It is an arithmetic number, because the mean of its divisors is an integer number (819776811).

Almost surely, 2^3201033221 is an apocalyptic number.

It is an amenable number.

3201033221 is a deficient number, since it is larger than the sum of its proper divisors (78074023).

3201033221 is an equidigital number, since it uses as much as digits as its factorization.

3201033221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78074022.

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

The square root of 3201033221 is about 56577.6742275608. The cubic root of 3201033221 is about 1473.7711831690.

Adding to 3201033221 its reverse (1223301023), we get a palindrome (4424334244).

The spelling of 3201033221 in words is "three billion, two hundred one million, thirty-three thousand, two hundred twenty-one".