217107160212 has 48 divisors (see below), whose sum is σ = 507873240000. Its totient is φ = 72184998912.

The previous prime is 217107160199. The next prime is 217107160223. The reversal of 217107160212 is 212061701712.

217107160212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 217107160212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8785618 + ... + 8810294.

It is an arithmetic number, because the mean of its divisors is an integer number (10580692500).

Almost surely, 2^217107160212 is an apocalyptic number.

It is an amenable number.

217107160212 is an abundant number, since it is smaller than the sum of its proper divisors (290766079788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

217107160212 is a wasteful number, since it uses less digits than its factorization.

217107160212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26520 (or 26518 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 30.

Adding to 217107160212 its reverse (212061701712), we get a palindrome (429168861924).

The spelling of 217107160212 in words is "two hundred seventeen billion, one hundred seven million, one hundred sixty thousand, two hundred twelve".