212102505216 has 108 divisors (see below), whose sum is σ = 698907266512. Its totient is φ = 60600711168.

The previous prime is 212102505119. The next prime is 212102505227. The reversal of 212102505216 is 612505201212.

212102505216 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 212102505216.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6559471 + ... + 6591726.

Almost surely, 2^212102505216 is an apocalyptic number.

It is an amenable number.

212102505216 is an abundant number, since it is smaller than the sum of its proper divisors (486804761296).

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

212102505216 is a wasteful number, since it uses less digits than its factorization.

212102505216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13151226 (or 13151209 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 212102505216 its reverse (612505201212), we get a palindrome (824607706428).

The spelling of 212102505216 in words is "two hundred twelve billion, one hundred two million, five hundred five thousand, two hundred sixteen".