210001002209 has 4 divisors (see below), whose sum is σ = 210002432304. Its totient is φ = 209999572116.

The previous prime is 210001002199. The next prime is 210001002229. The reversal of 210001002209 is 902200100012.

210001002209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 210001002209 - 2⁸ = 210001001953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210001002229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 465827 + ... + 798120.

It is an arithmetic number, because the mean of its divisors is an integer number (52500608076).

Almost surely, 2^210001002209 is an apocalyptic number.

It is an amenable number.

210001002209 is a deficient number, since it is larger than the sum of its proper divisors (1430095).

210001002209 is a wasteful number, since it uses less digits than its factorization.

210001002209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430094.

The product of its (nonzero) digits is 72, while the sum is 17.

The spelling of 210001002209 in words is "two hundred ten billion, one million, two thousand, two hundred nine".