12251242500 has 120 divisors (see below), whose sum is σ = 40824581952. Its totient is φ = 2800272000.

The previous prime is 12251242499. The next prime is 12251242517. The reversal of 12251242500 is 524215221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 64179 + ... + 169178.

Almost surely, 2^12251242500 is an apocalyptic number.

12251242500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12251242500 is an abundant number, since it is smaller than the sum of its proper divisors (28573339452).

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

12251242500 is a wasteful number, since it uses less digits than its factorization.

12251242500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233391 (or 233374 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 12251242500 its reverse (524215221), we get a palindrome (12775457721).

The spelling of 12251242500 in words is "twelve billion, two hundred fifty-one million, two hundred forty-two thousand, five hundred".