13221241242 has 32 divisors (see below), whose sum is σ = 28909531584. Its totient is φ = 3997660800.

The previous prime is 13221241153. The next prime is 13221241247. The reversal of 13221241242 is 24214212231.

It is not an unprimeable number, because it can be changed into a prime (13221241247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189009 + ... + 249332.

It is an arithmetic number, because the mean of its divisors is an integer number (903422862).

Almost surely, 2^13221241242 is an apocalyptic number.

13221241242 is an abundant number, since it is smaller than the sum of its proper divisors (15688290342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13221241242 is a wasteful number, since it uses less digits than its factorization.

13221241242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438814.

The product of its digits is 1536, while the sum is 24.

Adding to 13221241242 its reverse (24214212231), we get a palindrome (37435453473).

The spelling of 13221241242 in words is "thirteen billion, two hundred twenty-one million, two hundred forty-one thousand, two hundred forty-two".