12002213 has 2 divisors, whose sum is σ = 12002214. Its totient is φ = 12002212.

The previous prime is 12002209. The next prime is 12002231. The reversal of 12002213 is 31220021.

It is a happy number.

Together with next prime (12002231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6160324 + 5841889 = 2482^2 + 2417^2 .

It is a cyclic number.

It is not a de Polignac number, because 12002213 - 2² = 12002209 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12002194 and 12002203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12002413) 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 as a sum of consecutive naturals, namely, 6001106 + 6001107.

It is an arithmetic number, because the mean of its divisors is an integer number (6001107).

Almost surely, 2^12002213 is an apocalyptic number.

It is an amenable number.

12002213 is a deficient number, since it is larger than the sum of its proper divisors (1).

12002213 is an equidigital number, since it uses as much as digits as its factorization.

12002213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 12002213 is about 3464.4210194490. The cubic root of 12002213 is about 228.9569212713.

Adding to 12002213 its reverse (31220021), we get a palindrome (43222234).

The spelling of 12002213 in words is "twelve million, two thousand, two hundred thirteen".