200001001209 has 16 divisors (see below), whose sum is σ = 282363433920. Its totient is φ = 125486789120.

The previous prime is 200001001199. The next prime is 200001001217. The reversal of 200001001209 is 902100100002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 200001001209 - 2⁹ = 200001000697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200001001289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2806582 + ... + 2876960.

It is an arithmetic number, because the mean of its divisors is an integer number (17647714620).

Almost surely, 2^200001001209 is an apocalyptic number.

It is an amenable number.

200001001209 is a deficient number, since it is larger than the sum of its proper divisors (82362432711).

200001001209 is a wasteful number, since it uses less digits than its factorization.

200001001209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126120.

The product of its (nonzero) digits is 36, while the sum is 15.

The spelling of 200001001209 in words is "two hundred billion, one million, one thousand, two hundred nine".