212000332321 has 4 divisors (see below), whose sum is σ = 212002192944. Its totient is φ = 211998471700.

The previous prime is 212000332267. The next prime is 212000332387. The reversal of 212000332321 is 123233000212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212000332321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212000372321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 747415 + ... + 991276.

It is an arithmetic number, because the mean of its divisors is an integer number (53000548236).

Almost surely, 2^212000332321 is an apocalyptic number.

It is an amenable number.

212000332321 is a deficient number, since it is larger than the sum of its proper divisors (1860623).

212000332321 is a wasteful number, since it uses less digits than its factorization.

212000332321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860622.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 212000332321 its reverse (123233000212), we get a palindrome (335233332533).

The spelling of 212000332321 in words is "two hundred twelve billion, three hundred thirty-two thousand, three hundred twenty-one".