3220620120 has 96 divisors (see below), whose sum is σ = 10477041120. Its totient is φ = 858009600.

The previous prime is 3220620113. The next prime is 3220620167. The reversal of 3220620120 is 210260223.

3220620120 is a `hidden beast` number, since 3 + 2 + 20 + 620 + 1 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 3220620093 and 3220620102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 434445 + ... + 441795.

It is an arithmetic number, because the mean of its divisors is an integer number (109135845).

Almost surely, 2^3220620120 is an apocalyptic number.

3220620120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3220620120 is an abundant number, since it is smaller than the sum of its proper divisors (7256421000).

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

3220620120 is a wasteful number, since it uses less digits than its factorization.

3220620120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8585 (or 8578 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3220620120 is about 56750.5076629276. The cubic root of 3220620120 is about 1476.7710405146.

Adding to 3220620120 its reverse (210260223), we get a palindrome (3430880343).

It can be divided in two parts, 32206 and 20120, that added together give a triangular number (52326 = T₃₂₃).

The spelling of 3220620120 in words is "three billion, two hundred twenty million, six hundred twenty thousand, one hundred twenty".