12412155220525 has 6 divisors (see below), whose sum is σ = 15391072473482. Its totient is φ = 9929724176400.

The previous prime is 12412155220511. The next prime is 12412155220529. The reversal of 12412155220525 is 52502255121421.

It is a happy number.

12412155220525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 4119978431529 + 8292176788996 = 2029773^2 + 2879614^2 .

It is not a de Polignac number, because 12412155220525 - 2⁷ = 12412155220397 is a prime.

It is a super-2 number, since 2×12412155220525² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12412155220529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 248243104386 + ... + 248243104435.

Almost surely, 2^{12412155220525} is an apocalyptic number.

It is an amenable number.

12412155220525 is a deficient number, since it is larger than the sum of its proper divisors (2978917252957).

12412155220525 is an equidigital number, since it uses as much as digits as its factorization.

12412155220525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496486208831 (or 496486208826 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 37.

The spelling of 12412155220525 in words is "twelve trillion, four hundred twelve billion, one hundred fifty-five million, two hundred twenty thousand, five hundred twenty-five".