2123222020 has 12 divisors (see below), whose sum is σ = 4458766284. Its totient is φ = 849288800.

The previous prime is 2123222011. The next prime is 2123222033. The reversal of 2123222020 is 202223212.

It can be written as a sum of positive squares in 2 ways, for example, as 539818756 + 1583403264 = 23234^2 + 39792^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2123221985 and 2123222003.

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, 53080531 + ... + 53080570.

It is an arithmetic number, because the mean of its divisors is an integer number (371563857).

Almost surely, 2^2123222020 is an apocalyptic number.

2123222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123222020 is an abundant number, since it is smaller than the sum of its proper divisors (2335544264).

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

2123222020 is a wasteful number, since it uses less digits than its factorization.

2123222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106161110 (or 106161108 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2123222020 is about 46078.4333501043. The cubic root of 2123222020 is about 1285.2821315743.

Adding to 2123222020 its reverse (202223212), we get a palindrome (2325445232).

The spelling of 2123222020 in words is "two billion, one hundred twenty-three million, two hundred twenty-two thousand, twenty".