12426221131 has 8 divisors (see below), whose sum is σ = 12476450880. Its totient is φ = 12376059072.

The previous prime is 12426221113. The next prime is 12426221173. The reversal of 12426221131 is 13112262421.

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

It is a cyclic number.

It is not a de Polignac number, because 12426221131 - 2³³ = 3836286539 is a prime.

It is a super-2 number, since 2×12426221131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12426221096 and 12426221105.

It is not an unprimeable number, because it can be changed into a prime (12426221191) 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, 368526 + ... + 400828.

It is an arithmetic number, because the mean of its divisors is an integer number (1559556360).

Almost surely, 2^12426221131 is an apocalyptic number.

12426221131 is a deficient number, since it is larger than the sum of its proper divisors (50229749).

12426221131 is a wasteful number, since it uses less digits than its factorization.

12426221131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33845.

The product of its digits is 1152, while the sum is 25.

Adding to 12426221131 its reverse (13112262421), we get a palindrome (25538483552).

The spelling of 12426221131 in words is "twelve billion, four hundred twenty-six million, two hundred twenty-one thousand, one hundred thirty-one".