3321312220 has 12 divisors (see below), whose sum is σ = 6974755704. Its totient is φ = 1328524880.

The previous prime is 3321312209. The next prime is 3321312221. The reversal of 3321312220 is 222131233.

It is a super-2 number, since 2×3321312220² = 22062229725442656800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3321312221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83032786 + ... + 83032825.

It is an arithmetic number, because the mean of its divisors is an integer number (581229642).

Almost surely, 2^3321312220 is an apocalyptic number.

It is an amenable number.

3321312220 is an abundant number, since it is smaller than the sum of its proper divisors (3653443484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3321312220 is a wasteful number, since it uses less digits than its factorization.

3321312220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166065620 (or 166065618 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 3321312220 is about 57630.8269938928. The cubic root of 3321312220 is about 1492.0037033884.

Adding to 3321312220 its reverse (222131233), we get a palindrome (3543443453).

The spelling of 3321312220 in words is "three billion, three hundred twenty-one million, three hundred twelve thousand, two hundred twenty".