101200001 has 8 divisors (see below), whose sum is σ = 115875264. Its totient is φ = 86579280.

The previous prime is 101199979. The next prime is 101200007. The reversal of 101200001 is 100002101.

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 a de Polignac number, because none of the positive numbers 2^k-101200001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101200007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9575 + ... + 17148.

It is an arithmetic number, because the mean of its divisors is an integer number (14484408).

Almost surely, 2^101200001 is an apocalyptic number.

It is an amenable number.

101200001 is a deficient number, since it is larger than the sum of its proper divisors (14675263).

101200001 is an equidigital number, since it uses as much as digits as its factorization.

101200001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27271.

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

The square root of 101200001 is about 10059.8211216701. The cubic root of 101200001 is about 466.0081430052.

Adding to 101200001 its reverse (100002101), we get a palindrome (201202102).

The spelling of 101200001 in words is "one hundred one million, two hundred thousand, one".