201020002002 has 48 divisors (see below), whose sum is σ = 444690660960. Its totient is φ = 65608440000.

The previous prime is 201020001971. The next prime is 201020002013. The reversal of 201020002002 is 200200020102.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110499 + ... + 643622.

It is an arithmetic number, because the mean of its divisors is an integer number (9264388770).

Almost surely, 2^201020002002 is an apocalyptic number.

201020002002 is an abundant number, since it is smaller than the sum of its proper divisors (243670658958).

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

201020002002 is a wasteful number, since it uses less digits than its factorization.

201020002002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754439 (or 754436 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 201020002002 its reverse (200200020102), we get a palindrome (401220022104).

The spelling of 201020002002 in words is "two hundred one billion, twenty million, two thousand, two".