12005211 has 8 divisors (see below), whose sum is σ = 16030224. Its totient is φ = 7991840.

The previous prime is 12005171. The next prime is 12005219. The reversal of 12005211 is 11250021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12005211 - 2¹⁴ = 11988827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12005219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120 + ... + 4901.

It is an arithmetic number, because the mean of its divisors is an integer number (2003778).

Almost surely, 2^12005211 is an apocalyptic number.

12005211 is a deficient number, since it is larger than the sum of its proper divisors (4025013).

12005211 is an equidigital number, since it uses as much as digits as its factorization.

12005211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5821.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 12005211 is about 3464.8536765641. The cubic root of 12005211 is about 228.9759831922.

Adding to 12005211 its reverse (11250021), we get a palindrome (23255232).

The spelling of 12005211 in words is "twelve million, five thousand, two hundred eleven".