20000200001 has 16 divisors (see below), whose sum is σ = 21926926800. Its totient is φ = 18158020608.

The previous prime is 20000199983. The next prime is 20000200021. The reversal of 20000200001 is 10000200002.

20000200001 = 100000² + 100001².

It can be written as a sum of positive squares in 8 ways, for example, as 11895601 + 19988304400 = 3449^2 + 141380^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20000200001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20000200021) 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, 538631 + ... + 574563.

It is an arithmetic number, because the mean of its divisors is an integer number (1370432925).

Almost surely, 2^20000200001 is an apocalyptic number.

20000200001 is the 100001-st centered square number.

It is an amenable number.

20000200001 is a deficient number, since it is larger than the sum of its proper divisors (1926726799).

20000200001 is a wasteful number, since it uses less digits than its factorization.

20000200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37108.

The product of its (nonzero) digits is 4, while the sum is 5.

Adding to 20000200001 its reverse (10000200002), we get a palindrome (30000400003).

Subtracting from 20000200001 its reverse (10000200002), we obtain a palindrome (9999999999).

The spelling of 20000200001 in words is "twenty billion, two hundred thousand, one".