12562121452 has 24 divisors (see below), whose sum is σ = 22583091440. Its totient is φ = 6109888320.

The previous prime is 12562121449. The next prime is 12562121461. The reversal of 12562121452 is 25412126521.

12562121452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 943699 + ... + 956917.

Almost surely, 2^12562121452 is an apocalyptic number.

It is an amenable number.

12562121452 is a deficient number, since it is larger than the sum of its proper divisors (10020969988).

12562121452 is a wasteful number, since it uses less digits than its factorization.

12562121452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19681 (or 19679 counting only the distinct ones).

The product of its digits is 9600, while the sum is 31.

Adding to 12562121452 its reverse (25412126521), we get a palindrome (37974247973).

The spelling of 12562121452 in words is "twelve billion, five hundred sixty-two million, one hundred twenty-one thousand, four hundred fifty-two".