12222142440444 has 72 divisors (see below), whose sum is σ = 31614093743232. Its totient is φ = 3979207965600.

The previous prime is 12222142440419. The next prime is 12222142440511. The reversal of 12222142440444 is 44404424122221.

12222142440444 is a `hidden beast` number, since 1 + 2 + 2 + 221 + 4 + 24 + 404 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 12222142440399 and 12222142440408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99708897 + ... + 99831399.

Almost surely, 2^{12222142440444} is an apocalyptic number.

It is an amenable number.

12222142440444 is an abundant number, since it is smaller than the sum of its proper divisors (19391951302788).

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

12222142440444 is a wasteful number, since it uses less digits than its factorization.

12222142440444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187007 (or 187002 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 36.

Adding to 12222142440444 its reverse (44404424122221), we get a palindrome (56626566562665).

The spelling of 12222142440444 in words is "twelve trillion, two hundred twenty-two billion, one hundred forty-two million, four hundred forty thousand, four hundred forty-four".