12144222432 has 72 divisors (see below), whose sum is σ = 35814234456. Its totient is φ = 4048071552.

The previous prime is 12144222421. The next prime is 12144222443. The reversal of 12144222432 is 23422244121.

It is a happy number.

12144222432 is a `hidden beast` number, since 1 + 2 + 1 + 4 + 4 + 222 + 432 = 666.

It is an interprime number because it is at equal distance from previous prime (12144222421) and next prime (12144222443).

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 12144222396 and 12144222405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 773103 + ... + 788654.

It is an arithmetic number, because the mean of its divisors is an integer number (497419923).

Almost surely, 2^12144222432 is an apocalyptic number.

12144222432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12144222432 is an abundant number, since it is smaller than the sum of its proper divisors (23670012024).

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

12144222432 is an equidigital number, since it uses as much as digits as its factorization.

12144222432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561782 (or 1561762 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

Adding to 12144222432 its reverse (23422244121), we get a palindrome (35566466553).

The spelling of 12144222432 in words is "twelve billion, one hundred forty-four million, two hundred twenty-two thousand, four hundred thirty-two".