12144220042 has 16 divisors (see below), whose sum is σ = 18544813920. Its totient is φ = 5962834768.

The previous prime is 12144220027. The next prime is 12144220069. The reversal of 12144220042 is 24002244121.

12144220042 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12144219995 and 12144220022.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57408 + ... + 166084.

It is an arithmetic number, because the mean of its divisors is an integer number (1159050870).

Almost surely, 2^12144220042 is an apocalyptic number.

12144220042 is a deficient number, since it is larger than the sum of its proper divisors (6400593878).

12144220042 is a wasteful number, since it uses less digits than its factorization.

12144220042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109685.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 12144220042 its reverse (24002244121), we get a palindrome (36146464163).

The spelling of 12144220042 in words is "twelve billion, one hundred forty-four million, two hundred twenty thousand, forty-two".