12052213 has 4 divisors (see below), whose sum is σ = 12686560. Its totient is φ = 11417868.

The previous prime is 12052199. The next prime is 12052219. The reversal of 12052213 is 31225021.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31225021 = 467 ⋅66863.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12052213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12052219) 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, 317145 + ... + 317182.

It is an arithmetic number, because the mean of its divisors is an integer number (3171640).

Almost surely, 2^12052213 is an apocalyptic number.

It is an amenable number.

12052213 is a deficient number, since it is larger than the sum of its proper divisors (634347).

12052213 is an equidigital number, since it uses as much as digits as its factorization.

12052213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634346.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 12052213 is about 3471.6297325608. The cubic root of 12052213 is about 229.2744178835.

Adding to 12052213 its reverse (31225021), we get a palindrome (43277234).

The spelling of 12052213 in words is "twelve million, fifty-two thousand, two hundred thirteen".