3220120313312 has 72 divisors (see below), whose sum is σ = 7375041760464. Its totient is φ = 1379978353152.

The previous prime is 3220120313273. The next prime is 3220120313359. The reversal of 3220120313312 is 2133130210223.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37976948 + ... + 38061644.

It is an arithmetic number, because the mean of its divisors is an integer number (102431135562).

Almost surely, 2^{3220120313312} is an apocalyptic number.

3220120313312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3220120313312 is an abundant number, since it is smaller than the sum of its proper divisors (4154921447152).

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

3220120313312 is a wasteful number, since it uses less digits than its factorization.

3220120313312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108968 (or 108953 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 3220120313312 its reverse (2133130210223), we get a palindrome (5353250523535).

The spelling of 3220120313312 in words is "three trillion, two hundred twenty billion, one hundred twenty million, three hundred thirteen thousand, three hundred twelve".