512215412213 has 2 divisors, whose sum is σ = 512215412214. Its totient is φ = 512215412212.

The previous prime is 512215412131. The next prime is 512215412237. The reversal of 512215412213 is 312214512215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 331473093169 + 180742319044 = 575737^2 + 425138^2 .

It is a cyclic number.

It is not a de Polignac number, because 512215412213 - 2⁸ = 512215411957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (512215412243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256107706106 + 256107706107.

It is an arithmetic number, because the mean of its divisors is an integer number (256107706107).

Almost surely, 2^512215412213 is an apocalyptic number.

It is an amenable number.

512215412213 is a deficient number, since it is larger than the sum of its proper divisors (1).

512215412213 is an equidigital number, since it uses as much as digits as its factorization.

512215412213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4800, while the sum is 29.

Adding to 512215412213 its reverse (312214512215), we get a palindrome (824429924428).

The spelling of 512215412213 in words is "five hundred twelve billion, two hundred fifteen million, four hundred twelve thousand, two hundred thirteen".