3305002221 has 6 divisors (see below), whose sum is σ = 4773892110. Its totient is φ = 2203334808.

The previous prime is 3305002213. The next prime is 3305002223. The reversal of 3305002221 is 1222005033.

It can be written as a sum of positive squares in only one way, i.e., 2322179721 + 982822500 = 48189^2 + 31350^2 .

It is not a de Polignac number, because 3305002221 - 2³ = 3305002213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3305002194 and 3305002203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3305002223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 183611226 + ... + 183611243.

It is an arithmetic number, because the mean of its divisors is an integer number (795648685).

Almost surely, 2^3305002221 is an apocalyptic number.

It is an amenable number.

3305002221 is a deficient number, since it is larger than the sum of its proper divisors (1468889889).

3305002221 is a wasteful number, since it uses less digits than its factorization.

3305002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367222475 (or 367222472 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 3305002221 is about 57489.1487239114. The cubic root of 3305002221 is about 1489.5574291777.

Adding to 3305002221 its reverse (1222005033), we get a palindrome (4527007254).

The spelling of 3305002221 in words is "three billion, three hundred five million, two thousand, two hundred twenty-one".