200002100002001 has 16 divisors (see below), whose sum is σ = 221062082205888. Its totient is φ = 179433507672000.

The previous prime is 200002100001997. The next prime is 200002100002049. The reversal of 200002100002001 is 100200001200002.

It is a cyclic number.

It is not a de Polignac number, because 200002100002001 - 2² = 200002100001997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200002100002001.

It is not an unprimeable number, because it can be changed into a prime (200002100002051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292850930 + ... + 293533083.

It is an arithmetic number, because the mean of its divisors is an integer number (13816380137868).

Almost surely, 2^{200002100002001} is an apocalyptic number.

It is an amenable number.

200002100002001 is a deficient number, since it is larger than the sum of its proper divisors (21059982203887).

200002100002001 is a wasteful number, since it uses less digits than its factorization.

200002100002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586384432.

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 200002100002001 its reverse (100200001200002), we get a palindrome (300202101202003).

The spelling of 200002100002001 in words is "two hundred trillion, two billion, one hundred million, two thousand, one".