12011206 has 4 divisors (see below), whose sum is σ = 18016812. Its totient is φ = 6005602.

The previous prime is 12011203. The next prime is 12011213. The reversal of 12011206 is 60211021.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011203) 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 as a sum of consecutive naturals, namely, 3002800 + ... + 3002803.

It is an arithmetic number, because the mean of its divisors is an integer number (4504203).

Almost surely, 2^12011206 is an apocalyptic number.

12011206 is a deficient number, since it is larger than the sum of its proper divisors (6005606).

12011206 is an equidigital number, since it uses as much as digits as its factorization.

12011206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6005605.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 12011206 is about 3465.7186844867. The cubic root of 12011206 is about 229.0140911601.

Adding to 12011206 its reverse (60211021), we get a palindrome (72222227).

The spelling of 12011206 in words is "twelve million, eleven thousand, two hundred six".