3220212120 has 64 divisors (see below), whose sum is σ = 9921748320. Its totient is φ = 835513344.

The previous prime is 3220212101. The next prime is 3220212133. The reversal of 3220212120 is 212120223.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 3220212120.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 358197 + ... + 367076.

Almost surely, 2^3220212120 is an apocalyptic number.

3220212120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3220212120 is an abundant number, since it is smaller than the sum of its proper divisors (6701536200).

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

3220212120 is a wasteful number, since it uses less digits than its factorization.

3220212120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725324 (or 725320 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 3220212120 is about 56746.9128675737. The cubic root of 3220212120 is about 1476.7086769524.

Adding to 3220212120 its reverse (212120223), we get a palindrome (3432332343).

The spelling of 3220212120 in words is "three billion, two hundred twenty million, two hundred twelve thousand, one hundred twenty".