13221113151 has 8 divisors (see below), whose sum is σ = 18196801024. Its totient is φ = 8529750360.

The previous prime is 13221113141. The next prime is 13221113167. The reversal of 13221113151 is 15131112231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13221113151 - 2¹⁴ = 13221096767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221113141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71081161 + ... + 71081346.

It is an arithmetic number, because the mean of its divisors is an integer number (2274600128).

Almost surely, 2^13221113151 is an apocalyptic number.

13221113151 is a deficient number, since it is larger than the sum of its proper divisors (4975687873).

13221113151 is a wasteful number, since it uses less digits than its factorization.

13221113151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142162541.

The product of its digits is 180, while the sum is 21.

Adding to 13221113151 its reverse (15131112231), we get a palindrome (28352225382).

The spelling of 13221113151 in words is "thirteen billion, two hundred twenty-one million, one hundred thirteen thousand, one hundred fifty-one".