12205051 has 4 divisors (see below), whose sum is σ = 12234600. Its totient is φ = 12175504.

The previous prime is 12205033. The next prime is 12205069. The reversal of 12205051 is 15050221.

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

It is an interprime number because it is at equal distance from previous prime (12205033) and next prime (12205069).

It is a cyclic number.

It is not a de Polignac number, because 12205051 - 2⁹ = 12204539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12205001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14146 + ... + 14983.

It is an arithmetic number, because the mean of its divisors is an integer number (3058650).

Almost surely, 2^12205051 is an apocalyptic number.

12205051 is a deficient number, since it is larger than the sum of its proper divisors (29549).

12205051 is an equidigital number, since it uses as much as digits as its factorization.

12205051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29548.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 12205051 is about 3493.5728130383. The cubic root of 12205051 is about 230.2395173406.

Adding to 12205051 its reverse (15050221), we get a palindrome (27255272).

The spelling of 12205051 in words is "twelve million, two hundred five thousand, fifty-one".