212213242312213 has 4 divisors (see below), whose sum is σ = 212215040192448. Its totient is φ = 212211444431980.

The previous prime is 212213242312157. The next prime is 212213242312217. The reversal of 212213242312213 is 312213242312212.

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 212213242312213 - 2⁹ = 212213242311701 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 (212213242312217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 898763053 + ... + 898999138.

It is an arithmetic number, because the mean of its divisors is an integer number (53053760048112).

Almost surely, 2^{212213242312213} is an apocalyptic number.

It is an amenable number.

212213242312213 is a deficient number, since it is larger than the sum of its proper divisors (1797880235).

212213242312213 is a wasteful number, since it uses less digits than its factorization.

212213242312213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797880234.

The product of its digits is 13824, while the sum is 31.

Adding to 212213242312213 its reverse (312213242312212), we get a palindrome (524426484624425).

Subtracting 212213242312213 from its reverse (312213242312212), we obtain a palindrome (99999999999999).

The spelling of 212213242312213 in words is "two hundred twelve trillion, two hundred thirteen billion, two hundred forty-two million, three hundred twelve thousand, two hundred thirteen".