201201202020 has 144 divisors (see below), whose sum is σ = 705752042688. Its totient is φ = 42451234560.

The previous prime is 201201201997. The next prime is 201201202049. The reversal of 201201202020 is 20202102102.

201201202020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 201201201987 and 201201202005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2593926 + ... + 2670365.

It is an arithmetic number, because the mean of its divisors is an integer number (4901055852).

Almost surely, 2^201201202020 is an apocalyptic number.

201201202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201201202020 is an abundant number, since it is smaller than the sum of its proper divisors (504550840668).

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

201201202020 is a wasteful number, since it uses less digits than its factorization.

201201202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5264330 (or 5264321 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 201201202020 its reverse (20202102102), we get a palindrome (221403304122).

The spelling of 201201202020 in words is "two hundred one billion, two hundred one million, two hundred two thousand, twenty".