2122020020 has 36 divisors (see below), whose sum is σ = 4658438820. Its totient is φ = 811899264.

The previous prime is 2122020001. The next prime is 2122020077. The reversal of 2122020020 is 200202212.

It can be written as a sum of positive squares in 2 ways, for example, as 578787364 + 1543232656 = 24058^2 + 39284^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2122019983 and 2122020010.

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, 89705 + ... + 110864.

Almost surely, 2^2122020020 is an apocalyptic number.

2122020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122020020 is an abundant number, since it is smaller than the sum of its proper divisors (2536418800).

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

2122020020 is a wasteful number, since it uses less digits than its factorization.

2122020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200624 (or 200599 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2122020020 is about 46065.3885254428. The cubic root of 2122020020 is about 1285.0395441711.

Adding to 2122020020 its reverse (200202212), we get a palindrome (2322222232).

The spelling of 2122020020 in words is "two billion, one hundred twenty-two million, twenty thousand, twenty".