212322322 has 4 divisors (see below), whose sum is σ = 318483486. Its totient is φ = 106161160.

The previous prime is 212322289. The next prime is 212322373. The reversal of 212322322 is 223223212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 212314041 + 8281 = 14571^2 + 91^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 212322322.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53080579 + ... + 53080582.

Almost surely, 2^212322322 is an apocalyptic number.

212322322 is a deficient number, since it is larger than the sum of its proper divisors (106161164).

212322322 is a wasteful number, since it uses less digits than its factorization.

212322322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106161163.

The product of its digits is 576, while the sum is 19.

The square root of 212322322 is about 14571.2841575477. The cubic root of 212322322 is about 596.5752313862.

Adding to 212322322 its reverse (223223212), we get a palindrome (435545534).

The spelling of 212322322 in words is "two hundred twelve million, three hundred twenty-two thousand, three hundred twenty-two".