212660051213 has 4 divisors (see below), whose sum is σ = 212706076188. Its totient is φ = 212614026240.

The previous prime is 212660051203. The next prime is 212660051221. The reversal of 212660051213 is 312150066212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37485993769 + 175174057444 = 193613^2 + 418538^2 .

It is a cyclic number.

It is not a de Polignac number, because 212660051213 - 2²⁸ = 212391615757 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 (212660051203) 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, 23005556 + ... + 23014797.

It is an arithmetic number, because the mean of its divisors is an integer number (53176519047).

Almost surely, 2^212660051213 is an apocalyptic number.

It is an amenable number.

212660051213 is a deficient number, since it is larger than the sum of its proper divisors (46024975).

212660051213 is an equidigital number, since it uses as much as digits as its factorization.

212660051213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46024974.

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 212660051213 in words is "two hundred twelve billion, six hundred sixty million, fifty-one thousand, two hundred thirteen".