13110120120221 has 2 divisors, whose sum is σ = 13110120120222. Its totient is φ = 13110120120220.

The previous prime is 13110120120179. The next prime is 13110120120241. The reversal of 13110120120221 is 12202102101131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9984879532996 + 3125240587225 = 3159886^2 + 1767835^2 .

It is a cyclic number.

It is not a de Polignac number, because 13110120120221 - 2¹⁴ = 13110120103837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13110120120221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13110120120241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6555060060110 + 6555060060111.

It is an arithmetic number, because the mean of its divisors is an integer number (6555060060111).

Almost surely, 2^{13110120120221} is an apocalyptic number.

It is an amenable number.

13110120120221 is a deficient number, since it is larger than the sum of its proper divisors (1).

13110120120221 is an equidigital number, since it uses as much as digits as its factorization.

13110120120221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 13110120120221 its reverse (12202102101131), we get a palindrome (25312222221352).

The spelling of 13110120120221 in words is "thirteen trillion, one hundred ten billion, one hundred twenty million, one hundred twenty thousand, two hundred twenty-one".