13522141121 has 4 divisors (see below), whose sum is σ = 13524845700. Its totient is φ = 13519436544.

The previous prime is 13522141111. The next prime is 13522141133. The reversal of 13522141121 is 12114122531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2064793600 + 11457347521 = 45440^2 + 107039^2 .

It is a cyclic number.

It is not a de Polignac number, because 13522141121 - 2¹⁸ = 13521878977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13522141111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1344776 + ... + 1354793.

It is an arithmetic number, because the mean of its divisors is an integer number (3381211425).

Almost surely, 2^13522141121 is an apocalyptic number.

It is an amenable number.

13522141121 is a deficient number, since it is larger than the sum of its proper divisors (2704579).

13522141121 is an equidigital number, since it uses as much as digits as its factorization.

13522141121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2704578.

The product of its digits is 480, while the sum is 23.

Adding to 13522141121 its reverse (12114122531), we get a palindrome (25636263652).

The spelling of 13522141121 in words is "thirteen billion, five hundred twenty-two million, one hundred forty-one thousand, one hundred twenty-one".