2170800001 has 4 divisors (see below), whose sum is σ = 2171018052. Its totient is φ = 2170581952.

The previous prime is 2170799909. The next prime is 2170800013. The reversal of 2170800001 is 1000080712.

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 1928966400 + 241833601 = 43920^2 + 15551^2 .

It is a cyclic number.

It is not a de Polignac number, because 2170800001 - 2²¹ = 2168702849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2170800031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93340 + ... + 114253.

It is an arithmetic number, because the mean of its divisors is an integer number (542754513).

Almost surely, 2^2170800001 is an apocalyptic number.

It is an amenable number.

2170800001 is a deficient number, since it is larger than the sum of its proper divisors (218051).

2170800001 is a wasteful number, since it uses less digits than its factorization.

2170800001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218050.

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 2170800001 is about 46591.8447906927. The cubic root of 2170800001 is about 1294.8116681246.

Adding to 2170800001 its reverse (1000080712), we get a palindrome (3170880713).

The spelling of 2170800001 in words is "two billion, one hundred seventy million, eight hundred thousand, one".