12010866 has 64 divisors (see below), whose sum is σ = 28892160. Its totient is φ = 3257280.

The previous prime is 12010861. The next prime is 12010877. The reversal of 12010866 is 66801021.

It is not an unprimeable number, because it can be changed into a prime (12010861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91621 + ... + 91751.

It is an arithmetic number, because the mean of its divisors is an integer number (451440).

Almost surely, 2^12010866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12010866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14446080).

12010866 is an abundant number, since it is smaller than the sum of its proper divisors (16881294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12010866 is a wasteful number, since it uses less digits than its factorization.

12010866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 12010866 is about 3465.6696322644. The cubic root of 12010866 is about 229.0119302468.

Adding to 12010866 its reverse (66801021), we get a palindrome (78811887).

The spelling of 12010866 in words is "twelve million, ten thousand, eight hundred sixty-six".