13224132121 has 2 divisors, whose sum is σ = 13224132122. Its totient is φ = 13224132120.

The previous prime is 13224132079. The next prime is 13224132139. The reversal of 13224132121 is 12123142231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13122848025 + 101284096 = 114555^2 + 10064^2 .

It is a cyclic number.

It is not a de Polignac number, because 13224132121 - 2¹³ = 13224123929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13224132092 and 13224132101.

It is not a weakly prime, because it can be changed into another prime (13224132421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6612066060 + 6612066061.

It is an arithmetic number, because the mean of its divisors is an integer number (6612066061).

Almost surely, 2^13224132121 is an apocalyptic number.

It is an amenable number.

13224132121 is a deficient number, since it is larger than the sum of its proper divisors (1).

13224132121 is an equidigital number, since it uses as much as digits as its factorization.

13224132121 is an odious number, because the sum of its binary digits is odd.

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

Adding to 13224132121 its reverse (12123142231), we get a palindrome (25347274352).

The spelling of 13224132121 in words is "thirteen billion, two hundred twenty-four million, one hundred thirty-two thousand, one hundred twenty-one".