12720250124 has 12 divisors (see below), whose sum is σ = 22330662144. Its totient is φ = 6340060944.

The previous prime is 12720250121. The next prime is 12720250133. The reversal of 12720250124 is 42105202721.

It is a junction number, because it is equal to n+sod(n) for n = 12720250093 and 12720250102.

It is not an unprimeable number, because it can be changed into a prime (12720250121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5014604 + ... + 5017139.

It is an arithmetic number, because the mean of its divisors is an integer number (1860888512).

Almost surely, 2^12720250124 is an apocalyptic number.

It is an amenable number.

12720250124 is a deficient number, since it is larger than the sum of its proper divisors (9610412020).

12720250124 is a wasteful number, since it uses less digits than its factorization.

12720250124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10032064 (or 10032062 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

Adding to 12720250124 its reverse (42105202721), we get a palindrome (54825452845).

The spelling of 12720250124 in words is "twelve billion, seven hundred twenty million, two hundred fifty thousand, one hundred twenty-four".