3225032221 has 4 divisors (see below), whose sum is σ = 3312195292. Its totient is φ = 3137869152.

The previous prime is 3225032183. The next prime is 3225032263. The reversal of 3225032221 is 1222305223.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1222305223 = 103 ⋅11867041.

It can be written as a sum of positive squares in 2 ways, for example, as 2532605625 + 692426596 = 50325^2 + 26314^2 .

It is a cyclic number.

It is not a de Polignac number, because 3225032221 - 2⁷ = 3225032093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3225032192 and 3225032201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3225032521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43581480 + ... + 43581553.

It is an arithmetic number, because the mean of its divisors is an integer number (828048823).

Almost surely, 2^3225032221 is an apocalyptic number.

It is an amenable number.

3225032221 is a deficient number, since it is larger than the sum of its proper divisors (87163071).

3225032221 is an equidigital number, since it uses as much as digits as its factorization.

3225032221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87163070.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 3225032221 is about 56789.3671473807. The cubic root of 3225032221 is about 1477.4451021982.

Adding to 3225032221 its reverse (1222305223), we get a palindrome (4447337444).

The spelling of 3225032221 in words is "three billion, two hundred twenty-five million, thirty-two thousand, two hundred twenty-one".