12242320040 has 32 divisors (see below), whose sum is σ = 27560494080. Its totient is φ = 4894212672.

The previous prime is 12242320039. The next prime is 12242320049. The reversal of 12242320040 is 4002324221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12242319994 and 12242320021.

It is not an unprimeable number, because it can be changed into a prime (12242320049) 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, 11024 + ... + 156863.

It is an arithmetic number, because the mean of its divisors is an integer number (861265440).

Almost surely, 2^12242320040 is an apocalyptic number.

12242320040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12242320040 is an abundant number, since it is smaller than the sum of its proper divisors (15318174040).

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

12242320040 is a wasteful number, since it uses less digits than its factorization.

12242320040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169721 (or 169717 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 12242320040 its reverse (4002324221), we get a palindrome (16244644261).

The spelling of 12242320040 in words is "twelve billion, two hundred forty-two million, three hundred twenty thousand, forty".