212661425241 has 16 divisors (see below), whose sum is σ = 319756264000. Its totient is φ = 139658248224.

The previous prime is 212661425237. The next prime is 212661425243. The reversal of 212661425241 is 142524166212.

212661425241 is a `hidden beast` number, since 2 + 12 + 6 + 614 + 2 + 5 + 24 + 1 = 666.

212661425241 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 212661425241 - 2² = 212661425237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212661425196 and 212661425205.

It is not an unprimeable number, because it can be changed into a prime (212661425243) 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 15 ways as a sum of consecutive naturals, for example, 58776916 + ... + 58780533.

It is an arithmetic number, because the mean of its divisors is an integer number (19984766500).

Almost surely, 2^212661425241 is an apocalyptic number.

It is an amenable number.

212661425241 is a deficient number, since it is larger than the sum of its proper divisors (107094838759).

212661425241 is a wasteful number, since it uses less digits than its factorization.

212661425241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117557525 (or 117557519 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The spelling of 212661425241 in words is "two hundred twelve billion, six hundred sixty-one million, four hundred twenty-five thousand, two hundred forty-one".