212000215 has 12 divisors (see below), whose sum is σ = 295935336. Its totient is φ = 145371408.

The previous prime is 212000209. The next prime is 212000219. The reversal of 212000215 is 512000212.

It is not a de Polignac number, because 212000215 - 2²⁷ = 77782487 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212000195 and 212000204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212000219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 432409 + ... + 432898.

It is an arithmetic number, because the mean of its divisors is an integer number (24661278).

Almost surely, 2^212000215 is an apocalyptic number.

212000215 is a deficient number, since it is larger than the sum of its proper divisors (83935121).

212000215 is an equidigital number, since it uses as much as digits as its factorization.

212000215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865326 (or 865319 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 212000215 is about 14560.2271616895. The cubic root of 212000215 is about 596.2733973446.

Adding to 212000215 its reverse (512000212), we get a palindrome (724000427).

The spelling of 212000215 in words is "two hundred twelve million, two hundred fifteen", and thus it is an aban number.