3321210221 has 8 divisors (see below), whose sum is σ = 3883940544. Its totient is φ = 2780547840.

The previous prime is 3321210197. The next prime is 3321210227. The reversal of 3321210221 is 1220121233.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3321210221 - 2⁶ = 3321210157 is a prime.

It is a super-2 number, since 2×3321210221² = 22060874664149737682, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3321210221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3321210227) 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 7 ways as a sum of consecutive naturals, for example, 5516660 + ... + 5517261.

It is an arithmetic number, because the mean of its divisors is an integer number (485492568).

Almost surely, 2^3321210221 is an apocalyptic number.

It is an amenable number.

3321210221 is a deficient number, since it is larger than the sum of its proper divisors (562730323).

3321210221 is a wasteful number, since it uses less digits than its factorization.

3321210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11033971.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 3321210221 is about 57629.9420527212. The cubic root of 3321210221 is about 1491.9884298626.

Adding to 3321210221 its reverse (1220121233), we get a palindrome (4541331454).

The spelling of 3321210221 in words is "three billion, three hundred twenty-one million, two hundred ten thousand, two hundred twenty-one".