2020021012 has 24 divisors (see below), whose sum is σ = 3625965000. Its totient is φ = 984287616.

The previous prime is 2020021009. The next prime is 2020021057. The reversal of 2020021012 is 2101200202.

It can be written as a sum of positive squares in 4 ways, for example, as 308213136 + 1711807876 = 17556^2 + 41374^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2020021012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387 + ... + 63562.

It is an arithmetic number, because the mean of its divisors is an integer number (151081875).

Almost surely, 2^2020021012 is an apocalyptic number.

It is an amenable number.

2020021012 is a deficient number, since it is larger than the sum of its proper divisors (1605943988).

2020021012 is a wasteful number, since it uses less digits than its factorization.

2020021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64155 (or 64153 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2020021012 is about 44944.6438633126. The cubic root of 2020021012 is about 1264.1112479196. Note that the first 3 decimals are identical.

Adding to 2020021012 its reverse (2101200202), we get a palindrome (4121221214).

The spelling of 2020021012 in words is "two billion, twenty million, twenty-one thousand, twelve".