124221242177 has 2 divisors, whose sum is σ = 124221242178. Its totient is φ = 124221242176.

The previous prime is 124221242141. The next prime is 124221242251. The reversal of 124221242177 is 771242122421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93904860721 + 30316381456 = 306439^2 + 174116^2 .

It is a cyclic number.

It is not a de Polignac number, because 124221242177 - 2³⁶ = 55501765441 is a prime.

It is not a weakly prime, because it can be changed into another prime (124221242137) 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, 62110621088 + 62110621089.

It is an arithmetic number, because the mean of its divisors is an integer number (62110621089).

Almost surely, 2^124221242177 is an apocalyptic number.

It is an amenable number.

124221242177 is a deficient number, since it is larger than the sum of its proper divisors (1).

124221242177 is an equidigital number, since it uses as much as digits as its factorization.

124221242177 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25088, while the sum is 35.

Adding to 124221242177 its reverse (771242122421), we get a palindrome (895463364598).

The spelling of 124221242177 in words is "one hundred twenty-four billion, two hundred twenty-one million, two hundred forty-two thousand, one hundred seventy-seven".