201020102002 has 8 divisors (see below), whose sum is σ = 302184232812. Its totient is φ = 100292024400.

The previous prime is 201020101993. The next prime is 201020102021. The reversal of 201020102002 is 200201020102.

It can be written as a sum of positive squares in 2 ways, for example, as 197197276761 + 3822825241 = 444069^2 + 61829^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 201020102002.

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 3 ways as a sum of consecutive naturals, for example, 109012149 + ... + 109013992.

Almost surely, 2^201020102002 is an apocalyptic number.

201020102002 is a deficient number, since it is larger than the sum of its proper divisors (101164130810).

201020102002 is a wasteful number, since it uses less digits than its factorization.

201020102002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218026604.

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

Adding to 201020102002 its reverse (200201020102), we get a palindrome (401221122104).

The spelling of 201020102002 in words is "two hundred one billion, twenty million, one hundred two thousand, two".