212704407213 has 4 divisors (see below), whose sum is σ = 283605876288. Its totient is φ = 141802938140.

The previous prime is 212704407197. The next prime is 212704407239. The reversal of 212704407213 is 312704407212.

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 212704407213 - 2⁴ = 212704407197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212704407263) 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, 35450734533 + ... + 35450734538.

It is an arithmetic number, because the mean of its divisors is an integer number (70901469072).

Almost surely, 2^212704407213 is an apocalyptic number.

It is an amenable number.

212704407213 is a deficient number, since it is larger than the sum of its proper divisors (70901469075).

212704407213 is an equidigital number, since it uses as much as digits as its factorization.

212704407213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70901469074.

The product of its (nonzero) digits is 18816, while the sum is 33.

Subtracting 212704407213 from its reverse (312704407212), we obtain a palindrome (99999999999).

The spelling of 212704407213 in words is "two hundred twelve billion, seven hundred four million, four hundred seven thousand, two hundred thirteen".