3211221530 has 32 divisors (see below), whose sum is σ = 6320395008. Its totient is φ = 1164990400.

The previous prime is 3211221523. The next prime is 3211221577. The reversal of 3211221530 is 351221123.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13544 + ... + 81276.

It is an arithmetic number, because the mean of its divisors is an integer number (197512344).

Almost surely, 2^3211221530 is an apocalyptic number.

3211221530 is a deficient number, since it is larger than the sum of its proper divisors (3109173478).

3211221530 is a wasteful number, since it uses less digits than its factorization.

3211221530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68182.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 3211221530 is about 56667.6409426050. The cubic root of 3211221530 is about 1475.3331094829. Note that the first 3 decimals are identical.

Adding to 3211221530 its reverse (351221123), we get a palindrome (3562442653).

The spelling of 3211221530 in words is "three billion, two hundred eleven million, two hundred twenty-one thousand, five hundred thirty".