13530221101 has 2 divisors, whose sum is σ = 13530221102. Its totient is φ = 13530221100.

The previous prime is 13530221099. The next prime is 13530221129. The reversal of 13530221101 is 10112203531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11297564100 + 2232657001 = 106290^2 + 47251^2 .

It is an emirp because it is prime and its reverse (10112203531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13530221101 - 2¹ = 13530221099 is a prime.

Together with 13530221099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13530224101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765110550 + 6765110551.

It is an arithmetic number, because the mean of its divisors is an integer number (6765110551).

Almost surely, 2^13530221101 is an apocalyptic number.

It is an amenable number.

13530221101 is a deficient number, since it is larger than the sum of its proper divisors (1).

13530221101 is an equidigital number, since it uses as much as digits as its factorization.

13530221101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 13530221101 its reverse (10112203531), we get a palindrome (23642424632).

The spelling of 13530221101 in words is "thirteen billion, five hundred thirty million, two hundred twenty-one thousand, one hundred one".