12214205 has 4 divisors (see below), whose sum is σ = 14657052. Its totient is φ = 9771360.

The previous prime is 12214183. The next prime is 12214243. The reversal of 12214205 is 50241221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2709316 + 9504889 = 1646^2 + 3083^2 .

It is not a de Polignac number, because 12214205 - 2¹⁴ = 12197821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 1221416 + ... + 1221425.

It is an arithmetic number, because the mean of its divisors is an integer number (3664263).

Almost surely, 2^12214205 is an apocalyptic number.

It is an amenable number.

12214205 is a deficient number, since it is larger than the sum of its proper divisors (2442847).

12214205 is an equidigital number, since it uses as much as digits as its factorization.

12214205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2442846.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 12214205 is about 3494.8826875877. The cubic root of 12214205 is about 230.2970641668.

Adding to 12214205 its reverse (50241221), we get a palindrome (62455426).

The spelling of 12214205 in words is "twelve million, two hundred fourteen thousand, two hundred five".