212012230321 has 8 divisors (see below), whose sum is σ = 215277955200. Its totient is φ = 208754273280.

The previous prime is 212012230279. The next prime is 212012230351. The reversal of 212012230321 is 123032210212.

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 212012230321 - 2²⁵ = 211978675889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212012230351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1886941 + ... + 1996138.

It is an arithmetic number, because the mean of its divisors is an integer number (26909744400).

Almost surely, 2^212012230321 is an apocalyptic number.

It is an amenable number.

212012230321 is a deficient number, since it is larger than the sum of its proper divisors (3265724879).

212012230321 is an equidigital number, since it uses as much as digits as its factorization.

212012230321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3883919.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 212012230321 its reverse (123032210212), we get a palindrome (335044440533).

It can be divided in two parts, 21201 and 2230321, that added together give a palindrome (2251522).

The spelling of 212012230321 in words is "two hundred twelve billion, twelve million, two hundred thirty thousand, three hundred twenty-one".