212333323321 has 12 divisors (see below), whose sum is σ = 247244842740. Its totient is φ = 181819572480.

The previous prime is 212333323229. The next prime is 212333323417. The reversal of 212333323321 is 123323333212.

It can be written as a sum of positive squares in 2 ways, for example, as 28518765625 + 183814557696 = 168875^2 + 428736^2 .

It is not a de Polignac number, because 212333323321 - 2²¹ = 212331226169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212333323321.

It is not an unprimeable number, because it can be changed into a prime (212333323921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2097900 + ... + 2196781.

It is an arithmetic number, because the mean of its divisors is an integer number (20603736895).

Almost surely, 2^212333323321 is an apocalyptic number.

It is an amenable number.

212333323321 is a deficient number, since it is larger than the sum of its proper divisors (34911519419).

212333323321 is a wasteful number, since it uses less digits than its factorization.

212333323321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4295704 (or 4295697 counting only the distinct ones).

The product of its digits is 11664, while the sum is 28.

Adding to 212333323321 its reverse (123323333212), we get a palindrome (335656656533).

The spelling of 212333323321 in words is "two hundred twelve billion, three hundred thirty-three million, three hundred twenty-three thousand, three hundred twenty-one".