13212301351121 has 6 divisors (see below), whose sum is σ = 13652253114066. Its totient is φ = 12786098080800.

The previous prime is 13212301351099. The next prime is 13212301351127. The reversal of 13212301351121 is 12115310321231.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12545310628096 + 666990723025 = 3541936^2 + 816695^2 .

It is a de Polignac number, because none of the positive numbers 2^k-13212301351121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13212301351127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6874245320 + ... + 6874247241.

It is an arithmetic number, because the mean of its divisors is an integer number (2275375519011).

Almost surely, 2^{13212301351121} is an apocalyptic number.

It is an amenable number.

13212301351121 is a deficient number, since it is larger than the sum of its proper divisors (439951762945).

13212301351121 is an equidigital number, since it uses as much as digits as its factorization.

13212301351121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13748492623 (or 13748492592 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

Adding to 13212301351121 its reverse (12115310321231), we get a palindrome (25327611672352).

The spelling of 13212301351121 in words is "thirteen trillion, two hundred twelve billion, three hundred one million, three hundred fifty-one thousand, one hundred twenty-one".