200021110001 has 4 divisors (see below), whose sum is σ = 206473403904. Its totient is φ = 193568816100.

The previous prime is 200021109997. The next prime is 200021110031. The reversal of 200021110001 is 100011120002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 200021110001 - 2² = 200021109997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200021110031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3226146905 + ... + 3226146966.

It is an arithmetic number, because the mean of its divisors is an integer number (51618350976).

Almost surely, 2^200021110001 is an apocalyptic number.

It is an amenable number.

200021110001 is a deficient number, since it is larger than the sum of its proper divisors (6452293903).

200021110001 is an equidigital number, since it uses as much as digits as its factorization.

200021110001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6452293902.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 200021110001 its reverse (100011120002), we get a palindrome (300032230003).

The spelling of 200021110001 in words is "two hundred billion, twenty-one million, one hundred ten thousand, one".