12400219725 has 24 divisors (see below), whose sum is σ = 20532063840. Its totient is φ = 6603654720.

The previous prime is 12400219723. The next prime is 12400219787. The reversal of 12400219725 is 52791200421.

12400219725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12400219725 - 2¹ = 12400219723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12400219723) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 71335 + ... + 172884.

It is an arithmetic number, because the mean of its divisors is an integer number (855502660).

Almost surely, 2^12400219725 is an apocalyptic number.

12400219725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12400219725 is a deficient number, since it is larger than the sum of its proper divisors (8131844115).

12400219725 is a wasteful number, since it uses less digits than its factorization.

12400219725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244909 (or 244904 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The spelling of 12400219725 in words is "twelve billion, four hundred million, two hundred nineteen thousand, seven hundred twenty-five".