13124221242 has 16 divisors (see below), whose sum is σ = 28634664672. Its totient is φ = 3977036720.

The previous prime is 13124221219. The next prime is 13124221247. The reversal of 13124221242 is 24212242131.

13124221242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13124221247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99425853 + ... + 99425984.

It is an arithmetic number, because the mean of its divisors is an integer number (1789666542).

Almost surely, 2^13124221242 is an apocalyptic number.

13124221242 is an abundant number, since it is smaller than the sum of its proper divisors (15510443430).

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

13124221242 is a wasteful number, since it uses less digits than its factorization.

13124221242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198851853.

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

Adding to 13124221242 its reverse (24212242131), we get a palindrome (37336463373).

The spelling of 13124221242 in words is "thirteen billion, one hundred twenty-four million, two hundred twenty-one thousand, two hundred forty-two".