12401422124 has 72 divisors (see below), whose sum is σ = 26893375488. Its totient is φ = 4899510720.

The previous prime is 12401422097. The next prime is 12401422139. The reversal of 12401422124 is 42122410421.

It is a self number, because there is not a number n which added to its sum of digits gives 12401422124.

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 23 ways as a sum of consecutive naturals, for example, 5142479 + ... + 5144889.

It is an arithmetic number, because the mean of its divisors is an integer number (373519104).

Almost surely, 2^12401422124 is an apocalyptic number.

12401422124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12401422124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13446687744).

12401422124 is an abundant number, since it is smaller than the sum of its proper divisors (14491953364).

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

12401422124 is a wasteful number, since it uses less digits than its factorization.

12401422124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3535 (or 3520 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 12401422124 its reverse (42122410421), we get a palindrome (54523832545).

The spelling of 12401422124 in words is "twelve billion, four hundred one million, four hundred twenty-two thousand, one hundred twenty-four".