212230330 has 32 divisors (see below), whose sum is σ = 413254800. Its totient is φ = 78008832.

The previous prime is 212230321. The next prime is 212230373. The reversal of 212230330 is 33032212.

It can be written as a sum of positive squares in 8 ways, for example, as 119049921 + 93180409 = 10911^2 + 9653^2 .

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 15 ways as a sum of consecutive naturals, for example, 26206 + ... + 33334.

Almost surely, 2^212230330 is an apocalyptic number.

212230330 is a deficient number, since it is larger than the sum of its proper divisors (201024470).

212230330 is a wasteful number, since it uses less digits than its factorization.

212230330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7378.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 212230330 is about 14568.1271960400. The cubic root of 212230330 is about 596.4890603924.

Adding to 212230330 its reverse (33032212), we get a palindrome (245262542).

The spelling of 212230330 in words is "two hundred twelve million, two hundred thirty thousand, three hundred thirty".