3102213321 has 12 divisors (see below), whose sum is σ = 4486072500. Its totient is φ = 2065789440.

The previous prime is 3102213319. The next prime is 3102213347. The reversal of 3102213321 is 1233122013.

3102213321 is a `hidden beast` number, since 310 + 2 + 21 + 332 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 230432400 + 2871780921 = 15180^2 + 53589^2 .

It is not a de Polignac number, because 3102213321 - 2¹ = 3102213319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3102213294 and 3102213303.

It is not an unprimeable number, because it can be changed into a prime (3102218321) 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 11 ways as a sum of consecutive naturals, for example, 187696 + ... + 203553.

It is an arithmetic number, because the mean of its divisors is an integer number (373839375).

Almost surely, 2^3102213321 is an apocalyptic number.

It is an amenable number.

3102213321 is a deficient number, since it is larger than the sum of its proper divisors (1383859179).

3102213321 is a wasteful number, since it uses less digits than its factorization.

3102213321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392136 (or 392133 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3102213321 is about 55697.5162911238. The cubic root of 3102213321 is about 1458.4466686239.

Adding to 3102213321 its reverse (1233122013), we get a palindrome (4335335334).

The spelling of 3102213321 in words is "three billion, one hundred two million, two hundred thirteen thousand, three hundred twenty-one".