124666260221 has 2 divisors, whose sum is σ = 124666260222. Its totient is φ = 124666260220.

The previous prime is 124666260167. The next prime is 124666260227. The reversal of 124666260221 is 122062666421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91135156996 + 33531103225 = 301886^2 + 183115^2 .

It is an emirp because it is prime and its reverse (122062666421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124666260221 - 2³⁴ = 107486391037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124666260227) 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 as a sum of consecutive naturals, namely, 62333130110 + 62333130111.

It is an arithmetic number, because the mean of its divisors is an integer number (62333130111).

Almost surely, 2^124666260221 is an apocalyptic number.

It is an amenable number.

124666260221 is a deficient number, since it is larger than the sum of its proper divisors (1).

124666260221 is an equidigital number, since it uses as much as digits as its factorization.

124666260221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 124666260221 in words is "one hundred twenty-four billion, six hundred sixty-six million, two hundred sixty thousand, two hundred twenty-one".