12426221124 has 48 divisors (see below), whose sum is σ = 33001899840. Its totient is φ = 4041046080.

The previous prime is 12426221113. The next prime is 12426221173. The reversal of 12426221124 is 42112262421.

It is a happy number.

12426221124 is a `hidden beast` number, since 1 + 2 + 4 + 2 + 622 + 11 + 24 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1398714 + ... + 1407569.

It is an arithmetic number, because the mean of its divisors is an integer number (687539580).

Almost surely, 2^12426221124 is an apocalyptic number.

It is an amenable number.

12426221124 is an abundant number, since it is smaller than the sum of its proper divisors (20575678716).

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

12426221124 is a wasteful number, since it uses less digits than its factorization.

12426221124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2806337 (or 2806329 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

Adding to 12426221124 its reverse (42112262421), we get a palindrome (54538483545).

The spelling of 12426221124 in words is "twelve billion, four hundred twenty-six million, two hundred twenty-one thousand, one hundred twenty-four".