13102221232157 has 2 divisors, whose sum is σ = 13102221232158. Its totient is φ = 13102221232156.

The previous prime is 13102221232151. The next prime is 13102221232171. The reversal of 13102221232157 is 75123212220131.

13102221232157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7347927018436 + 5754294213721 = 2710706^2 + 2398811^2 .

It is an emirp because it is prime and its reverse (75123212220131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13102221232157 - 2⁸ = 13102221231901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13102221232151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6551110616078 + 6551110616079.

It is an arithmetic number, because the mean of its divisors is an integer number (6551110616079).

Almost surely, 2^{13102221232157} is an apocalyptic number.

It is an amenable number.

13102221232157 is a deficient number, since it is larger than the sum of its proper divisors (1).

13102221232157 is an equidigital number, since it uses as much as digits as its factorization.

13102221232157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 32.

Adding to 13102221232157 its reverse (75123212220131), we get a palindrome (88225433452288).

The spelling of 13102221232157 in words is "thirteen trillion, one hundred two billion, two hundred twenty-one million, two hundred thirty-two thousand, one hundred fifty-seven".