3304312221 has 32 divisors (see below), whose sum is σ = 5165088768. Its totient is φ = 1839576960.

The previous prime is 3304312217. The next prime is 3304312237. The reversal of 3304312221 is 1222134033.

It is not a de Polignac number, because 3304312221 - 2² = 3304312217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3304317221) 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 31 ways as a sum of consecutive naturals, for example, 740820 + ... + 745266.

It is an arithmetic number, because the mean of its divisors is an integer number (161409024).

Almost surely, 2^3304312221 is an apocalyptic number.

It is an amenable number.

3304312221 is a deficient number, since it is larger than the sum of its proper divisors (1860776547).

3304312221 is a wasteful number, since it uses less digits than its factorization.

3304312221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5361.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 3304312221 is about 57483.1472781371. The cubic root of 3304312221 is about 1489.4537614552.

Adding to 3304312221 its reverse (1222134033), we get a palindrome (4526446254).

The spelling of 3304312221 in words is "three billion, three hundred four million, three hundred twelve thousand, two hundred twenty-one".