200112001 has 4 divisors (see below), whose sum is σ = 200450052. Its totient is φ = 199773952.

The previous prime is 200111993. The next prime is 200112013. The reversal of 200112001 is 100211002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 125462401 + 74649600 = 11201^2 + 8640^2 .

It is a cyclic number.

It is not a de Polignac number, because 200112001 - 2³ = 200111993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200112061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168136 + ... + 169321.

It is an arithmetic number, because the mean of its divisors is an integer number (50112513).

Almost surely, 2^200112001 is an apocalyptic number.

It is an amenable number.

200112001 is a deficient number, since it is larger than the sum of its proper divisors (338051).

200112001 is an equidigital number, since it uses as much as digits as its factorization.

200112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338050.

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

The square root of 200112001 is about 14146.0949028345. The cubic root of 200112001 is about 584.9126915750.

Adding to 200112001 its reverse (100211002), we get a palindrome (300323003).

Subtracting from 200112001 its reverse (100211002), we obtain a palindrome (99900999).

The spelling of 200112001 in words is "two hundred million, one hundred twelve thousand, one".