12322302240 has 48 divisors (see below), whose sum is σ = 38815253568. Its totient is φ = 3285947136.

The previous prime is 12322302229. The next prime is 12322302241. The reversal of 12322302240 is 4220322321.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (12322302241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12835252 + ... + 12836211.

It is an arithmetic number, because the mean of its divisors is an integer number (808651116).

Almost surely, 2^12322302240 is an apocalyptic number.

12322302240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12322302240 is an abundant number, since it is smaller than the sum of its proper divisors (26492951328).

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

12322302240 is a wasteful number, since it uses less digits than its factorization.

12322302240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25671481 (or 25671473 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 12322302240 its reverse (4220322321), we get a palindrome (16542624561).

The spelling of 12322302240 in words is "twelve billion, three hundred twenty-two million, three hundred two thousand, two hundred forty".