212213332321 has 8 divisors (see below), whose sum is σ = 212728637120. Its totient is φ = 211698649008.

The previous prime is 212213332291. The next prime is 212213332337. The reversal of 212213332321 is 123233312212.

212213332321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212213332321 - 2²¹ = 212211235169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212213332021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532060 + ... + 841138.

It is an arithmetic number, because the mean of its divisors is an integer number (26591079640).

Almost surely, 2^212213332321 is an apocalyptic number.

It is an amenable number.

212213332321 is a deficient number, since it is larger than the sum of its proper divisors (515304799).

212213332321 is an equidigital number, since it uses as much as digits as its factorization.

212213332321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310743.

The product of its digits is 2592, while the sum is 25.

Adding to 212213332321 its reverse (123233312212), we get a palindrome (335446644533).

The spelling of 212213332321 in words is "two hundred twelve billion, two hundred thirteen million, three hundred thirty-two thousand, three hundred twenty-one".