12009011 has 16 divisors (see below), whose sum is σ = 14151168. Its totient is φ = 9979200.

The previous prime is 12008999. The next prime is 12009031. The reversal of 12009011 is 11090021.

It is not a de Polignac number, because 12009011 - 2¹⁴ = 11992627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12009031) 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, 36116 + ... + 36446.

It is an arithmetic number, because the mean of its divisors is an integer number (884448).

Almost surely, 2^12009011 is an apocalyptic number.

12009011 is a deficient number, since it is larger than the sum of its proper divisors (2142157).

12009011 is an equidigital number, since it uses as much as digits as its factorization.

12009011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482.

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

The square root of 12009011 is about 3465.4019968829. The cubic root of 12009011 is about 229.0001398396. Note that the first 3 decimals are identical.

Adding to 12009011 its reverse (11090021), we get a palindrome (23099032).

The spelling of 12009011 in words is "twelve million, nine thousand, eleven".