12281252424 has 32 divisors (see below), whose sum is σ = 35089293120. Its totient is φ = 3508929216.

The previous prime is 12281252419. The next prime is 12281252453. The reversal of 12281252424 is 42425218221.

It is a super-2 number, since 2×12281252424² (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 7 ways as a sum of consecutive naturals, for example, 36551179 + ... + 36551514.

It is an arithmetic number, because the mean of its divisors is an integer number (1096540410).

Almost surely, 2^12281252424 is an apocalyptic number.

12281252424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12281252424 is an abundant number, since it is smaller than the sum of its proper divisors (22808040696).

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

12281252424 is a wasteful number, since it uses less digits than its factorization.

12281252424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73102709 (or 73102705 counting only the distinct ones).

The product of its digits is 20480, while the sum is 33.

The spelling of 12281252424 in words is "twelve billion, two hundred eighty-one million, two hundred fifty-two thousand, four hundred twenty-four".