212102230 has 64 divisors (see below), whose sum is σ = 411428160. Its totient is φ = 78575616.

The previous prime is 212102221. The next prime is 212102257. The reversal of 212102230 is 32201212.

212102230 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 212102230.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 910194 + ... + 910426.

It is an arithmetic number, because the mean of its divisors is an integer number (6428565).

Almost surely, 2^212102230 is an apocalyptic number.

212102230 is a deficient number, since it is larger than the sum of its proper divisors (199325930).

212102230 is a wasteful number, since it uses less digits than its factorization.

212102230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 212102230 is about 14563.7299480593. The cubic root of 212102230 is about 596.3690247260.

Adding to 212102230 its reverse (32201212), we get a palindrome (244303442).

The spelling of 212102230 in words is "two hundred twelve million, one hundred two thousand, two hundred thirty".