12006220 has 12 divisors (see below), whose sum is σ = 25213104. Its totient is φ = 4802480.

The previous prime is 12006217. The next prime is 12006223. The reversal of 12006220 is 2260021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12006217) and next prime (12006223).

It is a self number, because there is not a number n which added to its sum of digits gives 12006220.

It is not an unprimeable number, because it can be changed into a prime (12006223) 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 3 ways as a sum of consecutive naturals, for example, 300136 + ... + 300175.

It is an arithmetic number, because the mean of its divisors is an integer number (2101092).

Almost surely, 2^12006220 is an apocalyptic number.

12006220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12006220 is an abundant number, since it is smaller than the sum of its proper divisors (13206884).

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

12006220 is a wasteful number, since it uses less digits than its factorization.

12006220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600320 (or 600318 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 12006220 is about 3464.9992784992. Note that the first 3 decimals coincide. The cubic root of 12006220 is about 228.9823979148.

Adding to 12006220 its reverse (2260021), we get a palindrome (14266241).

The spelling of 12006220 in words is "twelve million, six thousand, two hundred twenty".