212116340356 has 12 divisors (see below), whose sum is σ = 384003719820. Its totient is φ = 102400991840.

The previous prime is 212116340341. The next prime is 212116340377. The reversal of 212116340356 is 653043611212.

212116340356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 159208980100 + 52907360256 = 399010^2 + 230016^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914294455 + ... + 914294686.

It is an arithmetic number, because the mean of its divisors is an integer number (32000309985).

Almost surely, 2^212116340356 is an apocalyptic number.

It is an amenable number.

212116340356 is a deficient number, since it is larger than the sum of its proper divisors (171887379464).

212116340356 is a wasteful number, since it uses less digits than its factorization.

212116340356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828589174 (or 1828589172 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

Adding to 212116340356 its reverse (653043611212), we get a palindrome (865159951568).

The spelling of 212116340356 in words is "two hundred twelve billion, one hundred sixteen million, three hundred forty thousand, three hundred fifty-six".