212130224 has 20 divisors (see below), whose sum is σ = 411414144. Its totient is φ = 105958848.

The previous prime is 212130161. The next prime is 212130229. The reversal of 212130224 is 422031212.

It is not an unprimeable number, because it can be changed into a prime (212130229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11294 + ... + 23490.

Almost surely, 2^212130224 is an apocalyptic number.

It is an amenable number.

212130224 is a deficient number, since it is larger than the sum of its proper divisors (199283920).

212130224 is a wasteful number, since it uses less digits than its factorization.

212130224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13292 (or 13286 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 212130224 is about 14564.6910025582. The cubic root of 212130224 is about 596.3952605339.

Adding to 212130224 its reverse (422031212), we get a palindrome (634161436).

The spelling of 212130224 in words is "two hundred twelve million, one hundred thirty thousand, two hundred twenty-four".