12205004213 has 2 divisors, whose sum is σ = 12205004214. Its totient is φ = 12205004212.

The previous prime is 12205004173. The next prime is 12205004219. The reversal of 12205004213 is 31240050221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6364529284 + 5840474929 = 79778^2 + 76423^2 .

It is a cyclic number.

It is not a de Polignac number, because 12205004213 - 2¹⁰ = 12205003189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12205004219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6102502106 + 6102502107.

It is an arithmetic number, because the mean of its divisors is an integer number (6102502107).

Almost surely, 2^12205004213 is an apocalyptic number.

It is an amenable number.

12205004213 is a deficient number, since it is larger than the sum of its proper divisors (1).

12205004213 is an equidigital number, since it uses as much as digits as its factorization.

12205004213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 12205004213 its reverse (31240050221), we get a palindrome (43445054434).

The spelling of 12205004213 in words is "twelve billion, two hundred five million, four thousand, two hundred thirteen".