20201002002020 has 36 divisors (see below), whose sum is σ = 49348162035900. Its totient is φ = 6926057828928.

The previous prime is 20201002001969. The next prime is 20201002002047. The reversal of 20201002002020 is 2020020010202.

It can be written as a sum of positive squares in 2 ways, for example, as 7140396311104 + 13060605690916 = 2672152^2 + 3613946^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20201002001992 and 20201002002010.

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, 10306632695 + ... + 10306634654.

It is an arithmetic number, because the mean of its divisors is an integer number (1370782278775).

Almost surely, 2^{20201002002020} is an apocalyptic number.

20201002002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20201002002020 is an abundant number, since it is smaller than the sum of its proper divisors (29147160033880).

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

20201002002020 is a wasteful number, since it uses less digits than its factorization.

20201002002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20613267372 (or 20613267363 counting only the distinct ones).

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

Adding to 20201002002020 its reverse (2020020010202), we get a palindrome (22221022012222).

The spelling of 20201002002020 in words is "twenty trillion, two hundred one billion, two million, two thousand, twenty".