212031230 has 8 divisors (see below), whose sum is σ = 381656232. Its totient is φ = 84812488.

The previous prime is 212031173. The next prime is 212031251. The reversal of 212031230 is 32130212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10601552 + ... + 10601571.

It is an arithmetic number, because the mean of its divisors is an integer number (47707029).

Almost surely, 2^212031230 is an apocalyptic number.

212031230 is a deficient number, since it is larger than the sum of its proper divisors (169625002).

212031230 is a wasteful number, since it uses less digits than its factorization.

212031230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21203130.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 212031230 is about 14561.2921816712. The cubic root of 212031230 is about 596.3024736008.

Adding to 212031230 its reverse (32130212), we get a palindrome (244161442).

The spelling of 212031230 in words is "two hundred twelve million, thirty-one thousand, two hundred thirty".