13142221124 has 12 divisors (see below), whose sum is σ = 23209886700. Its totient is φ = 6510824928.

The previous prime is 13142221117. The next prime is 13142221129. The reversal of 13142221124 is 42112224131.

It can be written as a sum of positive squares in 2 ways, for example, as 6450981124 + 6691240000 = 80318^2 + 81800^2 .

It is a super-2 number, since 2×13142221124² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13142221124.

It is not an unprimeable number, because it can be changed into a prime (13142221129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15070919 + ... + 15071790.

It is an arithmetic number, because the mean of its divisors is an integer number (1934157225).

Almost surely, 2^13142221124 is an apocalyptic number.

It is an amenable number.

13142221124 is a deficient number, since it is larger than the sum of its proper divisors (10067665576).

13142221124 is a wasteful number, since it uses less digits than its factorization.

13142221124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30142822 (or 30142820 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

Adding to 13142221124 its reverse (42112224131), we get a palindrome (55254445255).

The spelling of 13142221124 in words is "thirteen billion, one hundred forty-two million, two hundred twenty-one thousand, one hundred twenty-four".