12400003122 has 16 divisors (see below), whose sum is σ = 26707699200. Its totient is φ = 3815385552.

The previous prime is 12400003111. The next prime is 12400003129. The reversal of 12400003122 is 22130000421.

It is not an unprimeable number, because it can be changed into a prime (12400003129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79487122 + ... + 79487277.

It is an arithmetic number, because the mean of its divisors is an integer number (1669231200).

Almost surely, 2^12400003122 is an apocalyptic number.

12400003122 is an abundant number, since it is smaller than the sum of its proper divisors (14307696078).

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

12400003122 is a wasteful number, since it uses less digits than its factorization.

12400003122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158974417.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12400003122 its reverse (22130000421), we get a palindrome (34530003543).

The spelling of 12400003122 in words is "twelve billion, four hundred million, three thousand, one hundred twenty-two".