12251043512 has 16 divisors (see below), whose sum is σ = 23711697600. Its totient is φ = 5927924160.

The previous prime is 12251043473. The next prime is 12251043517. The reversal of 12251043512 is 21534015221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12251043517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24699437 + ... + 24699932.

It is an arithmetic number, because the mean of its divisors is an integer number (1481981100).

Almost surely, 2^12251043512 is an apocalyptic number.

It is an amenable number.

12251043512 is a deficient number, since it is larger than the sum of its proper divisors (11460654088).

12251043512 is a wasteful number, since it uses less digits than its factorization.

12251043512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49399406 (or 49399402 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 12251043512 its reverse (21534015221), we get a palindrome (33785058733).

The spelling of 12251043512 in words is "twelve billion, two hundred fifty-one million, forty-three thousand, five hundred twelve".