14123321221 has 2 divisors, whose sum is σ = 14123321222. Its totient is φ = 14123321220.

The previous prime is 14123321203. The next prime is 14123321297. The reversal of 14123321221 is 12212332141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12811070596 + 1312250625 = 113186^2 + 36225^2 .

It is a cyclic number.

It is not a de Polignac number, because 14123321221 - 2⁹ = 14123320709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14123321192 and 14123321201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14123321321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7061660610 + 7061660611.

It is an arithmetic number, because the mean of its divisors is an integer number (7061660611).

Almost surely, 2^14123321221 is an apocalyptic number.

It is an amenable number.

14123321221 is a deficient number, since it is larger than the sum of its proper divisors (1).

14123321221 is an equidigital number, since it uses as much as digits as its factorization.

14123321221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 22.

Adding to 14123321221 its reverse (12212332141), we get a palindrome (26335653362).

The spelling of 14123321221 in words is "fourteen billion, one hundred twenty-three million, three hundred twenty-one thousand, two hundred twenty-one".