12322244040 has 96 divisors (see below), whose sum is σ = 39014887680. Its totient is φ = 3112977024.

The previous prime is 12322244023. The next prime is 12322244047. The reversal of 12322244040 is 4044222321.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 12322244040.

It is not an unprimeable number, because it can be changed into a prime (12322244047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98904 + ... + 185543.

It is an arithmetic number, because the mean of its divisors is an integer number (406405080).

Almost surely, 2^12322244040 is an apocalyptic number.

12322244040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12322244040 is an abundant number, since it is smaller than the sum of its proper divisors (26692643640).

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

12322244040 is a wasteful number, since it uses less digits than its factorization.

12322244040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284499 (or 284476 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 12322244040 its reverse (4044222321), we get a palindrome (16366466361).

The spelling of 12322244040 in words is "twelve billion, three hundred twenty-two million, two hundred forty-four thousand, forty".