212213030330 has 24 divisors (see below), whose sum is σ = 444348101268. Its totient is φ = 72758753088.

The previous prime is 212213030317. The next prime is 212213030353. The reversal of 212213030330 is 33030312212.

It can be written as a sum of positive squares in 2 ways, for example, as 210421286089 + 1791744241 = 458717^2 + 42329^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 216543419 + ... + 216544398.

Almost surely, 2^212213030330 is an apocalyptic number.

212213030330 is an abundant number, since it is smaller than the sum of its proper divisors (232135070938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212213030330 is a wasteful number, since it uses less digits than its factorization.

212213030330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433087838 (or 433087831 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 212213030330 its reverse (33030312212), we get a palindrome (245243342542).

The spelling of 212213030330 in words is "two hundred twelve billion, two hundred thirteen million, thirty thousand, three hundred thirty".