12242213 has 4 divisors (see below), whose sum is σ = 12886560. Its totient is φ = 11597868.

The previous prime is 12242203. The next prime is 12242221. The reversal of 12242213 is 31224221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12242213 - 2¹² = 12238117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12242191 and 12242200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12242203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322145 + ... + 322182.

It is an arithmetic number, because the mean of its divisors is an integer number (3221640).

Almost surely, 2^12242213 is an apocalyptic number.

It is an amenable number.

12242213 is a deficient number, since it is larger than the sum of its proper divisors (644347).

12242213 is an equidigital number, since it uses as much as digits as its factorization.

12242213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644346.

The product of its digits is 192, while the sum is 17.

The square root of 12242213 is about 3498.8873945870. The cubic root of 12242213 is about 230.4729587154.

Adding to 12242213 its reverse (31224221), we get a palindrome (43466434).

The spelling of 12242213 in words is "twelve million, two hundred forty-two thousand, two hundred thirteen".