12422156123 has 8 divisors (see below), whose sum is σ = 13402170768. Its totient is φ = 11445636384.

The previous prime is 12422156107. The next prime is 12422156147. The reversal of 12422156123 is 32165122421.

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

It is not a de Polignac number, because 12422156123 - 2⁴ = 12422156107 is a prime.

It is a super-2 number, since 2×12422156123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12422156023) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 866336 + ... + 880557.

It is an arithmetic number, because the mean of its divisors is an integer number (1675271346).

Almost surely, 2^12422156123 is an apocalyptic number.

12422156123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12422156123 is a deficient number, since it is larger than the sum of its proper divisors (980014645).

12422156123 is a wasteful number, since it uses less digits than its factorization.

12422156123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1747453.

The product of its digits is 5760, while the sum is 29.

Adding to 12422156123 its reverse (32165122421), we get a palindrome (44587278544).

The spelling of 12422156123 in words is "twelve billion, four hundred twenty-two million, one hundred fifty-six thousand, one hundred twenty-three".