13001300122221 has 6 divisors (see below), whose sum is σ = 18779655732110. Its totient is φ = 8667533414808.

The previous prime is 13001300122199. The next prime is 13001300122241. The reversal of 13001300122221 is 12222100310031.

13001300122221 is a `hidden beast` number, since 1 + 300 + 130 + 0 + 12 + 2 + 221 = 666.

13001300122221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11880009734121 + 1121290388100 = 3446739^2 + 1058910^2 .

It is not a de Polignac number, because 13001300122221 - 2¹¹ = 13001300120173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13001300122194 and 13001300122203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13001300122241) 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, 722294451226 + ... + 722294451243.

Almost surely, 2^{13001300122221} is an apocalyptic number.

It is an amenable number.

13001300122221 is a deficient number, since it is larger than the sum of its proper divisors (5778355609889).

13001300122221 is a wasteful number, since it uses less digits than its factorization.

13001300122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444588902475 (or 1444588902472 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 13001300122221 its reverse (12222100310031), we get a palindrome (25223400432252).

The spelling of 13001300122221 in words is "thirteen trillion, one billion, three hundred million, one hundred twenty-two thousand, two hundred twenty-one".