3123222020 has 12 divisors (see below), whose sum is σ = 6558766284. Its totient is φ = 1249288800.

The previous prime is 3123222013. The next prime is 3123222061. The reversal of 3123222020 is 202223213.

It can be written as a sum of positive squares in 2 ways, for example, as 2214078916 + 909143104 = 47054^2 + 30152^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3123222020.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78080531 + ... + 78080570.

It is an arithmetic number, because the mean of its divisors is an integer number (546563857).

Almost surely, 2^3123222020 is an apocalyptic number.

It is an amenable number.

3123222020 is an abundant number, since it is smaller than the sum of its proper divisors (3435544264).

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

3123222020 is a wasteful number, since it uses less digits than its factorization.

3123222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156161110 (or 156161108 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 3123222020 is about 55885.7944383007. The cubic root of 3123222020 is about 1461.7315447685.

Adding to 3123222020 its reverse (202223213), we get a palindrome (3325445233).

The spelling of 3123222020 in words is "three billion, one hundred twenty-three million, two hundred twenty-two thousand, twenty".