2211009 has 8 divisors (see below), whose sum is σ = 3027840. Its totient is φ = 1434096.

The previous prime is 2210993. The next prime is 2211019. The reversal of 2211009 is 9001122.

It is a happy number.

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

It is not a de Polignac number, because 2211009 - 2⁴ = 2210993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2211019) 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, 9849 + ... + 10070.

It is an arithmetic number, because the mean of its divisors is an integer number (378480).

2^2211009 is an apocalyptic number.

It is an amenable number.

2211009 is a deficient number, since it is larger than the sum of its proper divisors (816831).

2211009 is a wasteful number, since it uses less digits than its factorization.

2211009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19959.

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

The square root of 2211009 is about 1486.9461994302. The cubic root of 2211009 is about 130.2757264155.

The spelling of 2211009 in words is "two million, two hundred eleven thousand, nine".