212441321 has 2 divisors, whose sum is σ = 212441322. Its totient is φ = 212441320.

The previous prime is 212441303. The next prime is 212441351. The reversal of 212441321 is 123144212.

212441321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142468096 + 69973225 = 11936^2 + 8365^2 .

It is a cyclic number.

It is not a de Polignac number, because 212441321 - 2¹⁴ = 212424937 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 212441293 and 212441302.

It is not a weakly prime, because it can be changed into another prime (212441351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106220660 + 106220661.

It is an arithmetic number, because the mean of its divisors is an integer number (106220661).

Almost surely, 2^212441321 is an apocalyptic number.

It is an amenable number.

212441321 is a deficient number, since it is larger than the sum of its proper divisors (1).

212441321 is an equidigital number, since it uses as much as digits as its factorization.

212441321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384, while the sum is 20.

The square root of 212441321 is about 14575.3669250554. The cubic root of 212441321 is about 596.6866635344.

Adding to 212441321 its reverse (123144212), we get a palindrome (335585533).

The spelling of 212441321 in words is "two hundred twelve million, four hundred forty-one thousand, three hundred twenty-one".