3205334221 has 4 divisors (see below), whose sum is σ = 3212473500. Its totient is φ = 3198194944.

The previous prime is 3205334191. The next prime is 3205334261. The reversal of 3205334221 is 1224335023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1224335023 = 751 ⋅1630273.

It can be written as a sum of positive squares in 2 ways, for example, as 1934768196 + 1270566025 = 43986^2 + 35645^2 .

It is a cyclic number.

It is not a de Polignac number, because 3205334221 - 2⁵ = 3205334189 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 (3205334261) 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, 3568966 + ... + 3569863.

It is an arithmetic number, because the mean of its divisors is an integer number (803118375).

Almost surely, 2^3205334221 is an apocalyptic number.

It is an amenable number.

3205334221 is a deficient number, since it is larger than the sum of its proper divisors (7139279).

3205334221 is an equidigital number, since it uses as much as digits as its factorization.

3205334221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7139278.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 3205334221 is about 56615.6711609074. The cubic root of 3205334221 is about 1474.4309548313.

Adding to 3205334221 its reverse (1224335023), we get a palindrome (4429669244).

The spelling of 3205334221 in words is "three billion, two hundred five million, three hundred thirty-four thousand, two hundred twenty-one".