12008213 has 4 divisors (see below), whose sum is σ = 13723680. Its totient is φ = 10292748.

The previous prime is 12008201. The next prime is 12008219. The reversal of 12008213 is 31280021.

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: 31280021 = 643 ⋅48647.

It is a cyclic number.

It is not a de Polignac number, because 12008213 - 2⁴ = 12008197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12008191 and 12008200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12008219) 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, 857723 + ... + 857736.

It is an arithmetic number, because the mean of its divisors is an integer number (3430920).

Almost surely, 2^12008213 is an apocalyptic number.

It is an amenable number.

12008213 is a deficient number, since it is larger than the sum of its proper divisors (1715467).

12008213 is an equidigital number, since it uses as much as digits as its factorization.

12008213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715466.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 12008213 is about 3465.2868568129. The cubic root of 12008213 is about 228.9950673664.

Adding to 12008213 its reverse (31280021), we get a palindrome (43288234).

It can be divided in two parts, 12008 and 213, that added together give a palindrome (12221).

The spelling of 12008213 in words is "twelve million, eight thousand, two hundred thirteen".