200101001 has 8 divisors (see below), whose sum is σ = 208454400. Its totient is φ = 191866320.

The previous prime is 200100997. The next prime is 200101003. The reversal of 200101001 is 100101002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200101001 - 2² = 200100997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200101003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26231 + ... + 32988.

It is an arithmetic number, because the mean of its divisors is an integer number (26056800).

Almost surely, 2^200101001 is an apocalyptic number.

It is an amenable number.

200101001 is a deficient number, since it is larger than the sum of its proper divisors (8353399).

200101001 is a wasteful number, since it uses less digits than its factorization.

200101001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59359.

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 200101001 is about 14145.7060976114. The cubic root of 200101001 is about 584.9019739810.

Adding to 200101001 its reverse (100101002), we get a palindrome (300202003).

Subtracting from 200101001 its reverse (100101002), we obtain a palindrome (99999999).

The spelling of 200101001 in words is "two hundred million, one hundred one thousand, one".