212313312020221 has 8 divisors (see below), whose sum is σ = 214917582670560. Its totient is φ = 209710143249552.

The previous prime is 212313312020197. The next prime is 212313312020233. The reversal of 212313312020221 is 122020213313212.

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 212313312020221 - 2¹¹ = 212313312018173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212313312027221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275082186 + ... + 275852923.

It is an arithmetic number, because the mean of its divisors is an integer number (26864697833820).

Almost surely, 2^{212313312020221} is an apocalyptic number.

It is an amenable number.

212313312020221 is a deficient number, since it is larger than the sum of its proper divisors (2604270650339).

212313312020221 is an equidigital number, since it uses as much as digits as its factorization.

212313312020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550939835.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 212313312020221 its reverse (122020213313212), we get a palindrome (334333525333433).

The spelling of 212313312020221 in words is "two hundred twelve trillion, three hundred thirteen billion, three hundred twelve million, twenty thousand, two hundred twenty-one".