12240421608 has 16 divisors (see below), whose sum is σ = 30601054080. Its totient is φ = 4080140528.

The previous prime is 12240421577. The next prime is 12240421621. The reversal of 12240421608 is 80612404221.

It is a super-2 number, since 2×12240421608² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255008760 + ... + 255008807.

It is an arithmetic number, because the mean of its divisors is an integer number (1912565880).

Almost surely, 2^12240421608 is an apocalyptic number.

It is an amenable number.

12240421608 is an abundant number, since it is smaller than the sum of its proper divisors (18360632472).

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

12240421608 is a wasteful number, since it uses less digits than its factorization.

12240421608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510017576 (or 510017572 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

Adding to 12240421608 its reverse (80612404221), we get a palindrome (92852825829).

The spelling of 12240421608 in words is "twelve billion, two hundred forty million, four hundred twenty-one thousand, six hundred eight".