21230212221341 has 2 divisors, whose sum is σ = 21230212221342. Its totient is φ = 21230212221340.

The previous prime is 21230212221331. The next prime is 21230212221353. The reversal of 21230212221341 is 14312221203212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17473027005625 + 3757185215716 = 4180075^2 + 1938346^2 .

It is a cyclic number.

It is not a de Polignac number, because 21230212221341 - 2³⁰ = 21229138479517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21230212221341.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21230212221311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10615106110670 + 10615106110671.

It is an arithmetic number, because the mean of its divisors is an integer number (10615106110671).

Almost surely, 2^{21230212221341} is an apocalyptic number.

It is an amenable number.

21230212221341 is a deficient number, since it is larger than the sum of its proper divisors (1).

21230212221341 is an equidigital number, since it uses as much as digits as its factorization.

21230212221341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 21230212221341 its reverse (14312221203212), we get a palindrome (35542433424553).

The spelling of 21230212221341 in words is "twenty-one trillion, two hundred thirty billion, two hundred twelve million, two hundred twenty-one thousand, three hundred forty-one".