213221213341 has 2 divisors, whose sum is σ = 213221213342. Its totient is φ = 213221213340.

The previous prime is 213221213339. The next prime is 213221213363. The reversal of 213221213341 is 143312122312.

213221213341 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., 125702866116 + 87518347225 = 354546^2 + 295835^2 .

It is a cyclic number.

It is not a de Polignac number, because 213221213341 - 2¹ = 213221213339 is a prime.

Together with 213221213339, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213221213371) 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 as a sum of consecutive naturals, namely, 106610606670 + 106610606671.

It is an arithmetic number, because the mean of its divisors is an integer number (106610606671).

Almost surely, 2^213221213341 is an apocalyptic number.

It is an amenable number.

213221213341 is a deficient number, since it is larger than the sum of its proper divisors (1).

213221213341 is an equidigital number, since it uses as much as digits as its factorization.

213221213341 is an odious number, because the sum of its binary digits is odd.

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

Adding to 213221213341 its reverse (143312122312), we get a palindrome (356533335653).

The spelling of 213221213341 in words is "two hundred thirteen billion, two hundred twenty-one million, two hundred thirteen thousand, three hundred forty-one".