8120210001 has 8 divisors (see below), whose sum is σ = 10827623040. Its totient is φ = 5413135152.

The previous prime is 8120209997. The next prime is 8120210027. The reversal of 8120210001 is 1000120218.

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

It is not a de Polignac number, because 8120210001 - 2² = 8120209997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8120210041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21886 + ... + 129303.

It is an arithmetic number, because the mean of its divisors is an integer number (1353452880).

Almost surely, 2^8120210001 is an apocalyptic number.

It is an amenable number.

8120210001 is a deficient number, since it is larger than the sum of its proper divisors (2707413039).

8120210001 is a wasteful number, since it uses less digits than its factorization.

8120210001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169095.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 8120210001 is about 90112.2078355647. The cubic root of 8120210001 is about 2009.9677396372.

Adding to 8120210001 its reverse (1000120218), we get a palindrome (9120330219).

The spelling of 8120210001 in words is "eight billion, one hundred twenty million, two hundred ten thousand, one".