212330322 has 20 divisors (see below), whose sum is σ = 475777566. Its totient is φ = 70776720.

The previous prime is 212330317. The next prime is 212330353. The reversal of 212330322 is 223033212.

It is a happy number.

212330322 is a `hidden beast` number, since 2 + 12 + 330 + 322 = 666.

It can be written as a sum of positive squares in only one way, i.e., 202464441 + 9865881 = 14229^2 + 3141^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 212330295 and 212330304.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 655179 + ... + 655502.

Almost surely, 2^212330322 is an apocalyptic number.

212330322 is an abundant number, since it is smaller than the sum of its proper divisors (263447244).

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

212330322 is a wasteful number, since it uses less digits than its factorization.

212330322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310695 (or 1310686 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 212330322 is about 14571.5586674865. The cubic root of 212330322 is about 596.5827239913.

Adding to 212330322 its reverse (223033212), we get a palindrome (435363534).

The spelling of 212330322 in words is "two hundred twelve million, three hundred thirty thousand, three hundred twenty-two".