200020011001 has 4 divisors (see below), whose sum is σ = 200027212432. Its totient is φ = 200012809572.

The previous prime is 200020010959. The next prime is 200020011007. The reversal of 200020011001 is 100110020002.

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 200020011001 - 2¹¹ = 200020008953 is a prime.

It is a super-2 number, since 2×200020011001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200020011007) 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, 3558891 + ... + 3614656.

It is an arithmetic number, because the mean of its divisors is an integer number (50006803108).

Almost surely, 2^200020011001 is an apocalyptic number.

It is an amenable number.

200020011001 is a deficient number, since it is larger than the sum of its proper divisors (7201431).

200020011001 is an equidigital number, since it uses as much as digits as its factorization.

200020011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7201430.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 200020011001 its reverse (100110020002), we get a palindrome (300130031003).

Subtracting from 200020011001 its reverse (100110020002), we obtain a palindrome (99909990999).

The spelling of 200020011001 in words is "two hundred billion, twenty million, eleven thousand, one".