10011209 has 8 divisors (see below), whose sum is σ = 10809792. Its totient is φ = 9216720.

The previous prime is 10011203. The next prime is 10011227. The reversal of 10011209 is 90211001.

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

It is a cyclic number.

It is not a de Polignac number, because 10011209 - 2²⁰ = 8962633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10011193 and 10011202.

It is not an unprimeable number, because it can be changed into a prime (10011203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5774 + ... + 7304.

It is an arithmetic number, because the mean of its divisors is an integer number (1351224).

Almost surely, 2^10011209 is an apocalyptic number.

It is an amenable number.

10011209 is a deficient number, since it is larger than the sum of its proper divisors (798583).

10011209 is a wasteful number, since it uses less digits than its factorization.

10011209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2047.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 10011209 is about 3164.0494623188. The cubic root of 10011209 is about 215.5239358071.

The spelling of 10011209 in words is "ten million, eleven thousand, two hundred nine".