12205411 has 4 divisors (see below), whose sum is σ = 12214800. Its totient is φ = 12196024.

The previous prime is 12205393. The next prime is 12205441. The reversal of 12205411 is 11450221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 11450221 = 443 ⋅25847.

It is a cyclic number.

It is not a de Polignac number, because 12205411 - 2⁷ = 12205283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12205441) 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, 2356 + ... + 5473.

It is an arithmetic number, because the mean of its divisors is an integer number (3053700).

Almost surely, 2^12205411 is an apocalyptic number.

12205411 is a deficient number, since it is larger than the sum of its proper divisors (9389).

12205411 is an equidigital number, since it uses as much as digits as its factorization.

12205411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9388.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 12205411 is about 3493.6243358438. The cubic root of 12205411 is about 230.2417810321.

Adding to 12205411 its reverse (11450221), we get a palindrome (23655632).

The spelling of 12205411 in words is "twelve million, two hundred five thousand, four hundred eleven".