12250453344021 has 32 divisors (see below), whose sum is σ = 18376144502400. Its totient is φ = 8165517464304.

The previous prime is 12250453344007. The next prime is 12250453344029. The reversal of 12250453344021 is 12044335405221.

It is a happy number.

12250453344021 is a `hidden beast` number, since 1 + 2 + 250 + 45 + 3 + 344 + 0 + 21 = 666.

It is not a de Polignac number, because 12250453344021 - 2³⁴ = 12233273474837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12250453344029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11881315 + ... + 12871151.

It is an arithmetic number, because the mean of its divisors is an integer number (574254515700).

Almost surely, 2^{12250453344021} is an apocalyptic number.

It is an amenable number.

12250453344021 is a deficient number, since it is larger than the sum of its proper divisors (6125691158379).

12250453344021 is an frugal number, since it uses more digits than its factorization.

12250453344021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995517 (or 995499 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 12250453344021 its reverse (12044335405221), we get a palindrome (24294788749242).

The spelling of 12250453344021 in words is "twelve trillion, two hundred fifty billion, four hundred fifty-three million, three hundred forty-four thousand, twenty-one".