3321120020 has 24 divisors (see below), whose sum is σ = 7214848200. Its totient is φ = 1282639232.

The previous prime is 3321120013. The next prime is 3321120053. The reversal of 3321120020 is 200211233.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 174134416 + 3146985604 = 13196^2 + 56098^2 .

It is a super-2 number, since 2×3321120020² = 22059676374489600800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3321119977 and 3321120004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2862455 + ... + 2863614.

It is an arithmetic number, because the mean of its divisors is an integer number (300618675).

Almost surely, 2^3321120020 is an apocalyptic number.

It is an amenable number.

3321120020 is an abundant number, since it is smaller than the sum of its proper divisors (3893728180).

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

3321120020 is a wasteful number, since it uses less digits than its factorization.

3321120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5726107 (or 5726105 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 3321120020 is about 57629.1594594264. The cubic root of 3321120020 is about 1491.9749227314.

Adding to 3321120020 its reverse (200211233), we get a palindrome (3521331253).

The spelling of 3321120020 in words is "three billion, three hundred twenty-one million, one hundred twenty thousand, twenty".