12081211 has 4 divisors (see below), whose sum is σ = 12132000. Its totient is φ = 12030424.

The previous prime is 12081193. The next prime is 12081229. The reversal of 12081211 is 11218021.

12081211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11218021 = 379 ⋅29599.

It is an interprime number because it is at equal distance from previous prime (12081193) and next prime (12081229).

It is a cyclic number.

It is not a de Polignac number, because 12081211 - 2⁹ = 12080699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12081241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25036 + ... + 25513.

It is an arithmetic number, because the mean of its divisors is an integer number (3033000).

Almost surely, 2^12081211 is an apocalyptic number.

12081211 is a deficient number, since it is larger than the sum of its proper divisors (50789).

12081211 is an equidigital number, since it uses as much as digits as its factorization.

12081211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50788.

The product of its (nonzero) digits is 32, while the sum is 16.

The square root of 12081211 is about 3475.8036480791. The cubic root of 12081211 is about 229.4581510706.

Adding to 12081211 its reverse (11218021), we get a palindrome (23299232).

The spelling of 12081211 in words is "twelve million, eighty-one thousand, two hundred eleven".