212412322215 has 64 divisors (see below), whose sum is σ = 395350502400. Its totient is φ = 108062140032.

The previous prime is 212412322207. The next prime is 212412322253. The reversal of 212412322215 is 512223214212.

212412322215 is a `hidden beast` number, since 2 + 1 + 2 + 412 + 32 + 2 + 215 = 666.

212412322215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212412322215 - 2³ = 212412322207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 1899 + ... + 651788.

It is an arithmetic number, because the mean of its divisors is an integer number (6177351600).

Almost surely, 2^212412322215 is an apocalyptic number.

212412322215 is a deficient number, since it is larger than the sum of its proper divisors (182938180185).

212412322215 is a wasteful number, since it uses less digits than its factorization.

212412322215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653813 (or 653807 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

Adding to 212412322215 its reverse (512223214212), we get a palindrome (724635536427).

The spelling of 212412322215 in words is "two hundred twelve billion, four hundred twelve million, three hundred twenty-two thousand, two hundred fifteen".