3220312120 has 64 divisors (see below), whose sum is σ = 7367500800. Its totient is φ = 1266545280.

The previous prime is 3220312111. The next prime is 3220312129. The reversal of 3220312120 is 212130223.

3220312120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3220312111) and next prime (3220312129).

It is a junction number, because it is equal to n+sod(n) for n = 3220312094 and 3220312103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220312129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2440821 + ... + 2442139.

It is an arithmetic number, because the mean of its divisors is an integer number (115117200).

Almost surely, 2^3220312120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3220312120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3683750400).

3220312120 is an abundant number, since it is smaller than the sum of its proper divisors (4147188680).

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

3220312120 is a wasteful number, since it uses less digits than its factorization.

3220312120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308 (or 2304 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 3220312120 is about 56747.7939659332. The cubic root of 3220312120 is about 1476.7239626265.

Adding to 3220312120 its reverse (212130223), we get a palindrome (3432442343).

The spelling of 3220312120 in words is "three billion, two hundred twenty million, three hundred twelve thousand, one hundred twenty".