12421142422 has 64 divisors (see below), whose sum is σ = 21816345600. Its totient is φ = 5254951680.

The previous prime is 12421142407. The next prime is 12421142467. The reversal of 12421142422 is 22424112421.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2063397 + ... + 2069407.

It is an arithmetic number, because the mean of its divisors is an integer number (340880400).

Almost surely, 2^12421142422 is an apocalyptic number.

12421142422 is a deficient number, since it is larger than the sum of its proper divisors (9395203178).

12421142422 is a wasteful number, since it uses less digits than its factorization.

12421142422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6181.

The product of its digits is 2048, while the sum is 25.

Adding to 12421142422 its reverse (22424112421), we get a palindrome (34845254843).

The spelling of 12421142422 in words is "twelve billion, four hundred twenty-one million, one hundred forty-two thousand, four hundred twenty-two".