210120002 has 8 divisors (see below), whose sum is σ = 315658812. Its totient is φ = 104900400.

The previous prime is 210119989. The next prime is 210120041. The reversal of 210120002 is 200021012.

It can be written as a sum of positive squares in 2 ways, for example, as 176119441 + 34000561 = 13271^2 + 5831^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 78149 + ... + 80792.

Almost surely, 2^210120002 is an apocalyptic number.

210120002 is a deficient number, since it is larger than the sum of its proper divisors (105538810).

210120002 is a wasteful number, since it uses less digits than its factorization.

210120002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159604.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 210120002 is about 14495.5166172165. The cubic root of 210120002 is about 594.5053931652.

Adding to 210120002 its reverse (200021012), we get a palindrome (410141014).

The spelling of 210120002 in words is "two hundred ten million, one hundred twenty thousand, two".