124880221 has 2 divisors, whose sum is σ = 124880222. Its totient is φ = 124880220.

The previous prime is 124880201. The next prime is 124880251. The reversal of 124880221 is 122088421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99780121 + 25100100 = 9989^2 + 5010^2 .

It is a cyclic number.

It is not a de Polignac number, because 124880221 - 2⁹ = 124879709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 124880221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124880201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62440110 + 62440111.

It is an arithmetic number, because the mean of its divisors is an integer number (62440111).

Almost surely, 2^124880221 is an apocalyptic number.

It is an amenable number.

124880221 is a deficient number, since it is larger than the sum of its proper divisors (1).

124880221 is an equidigital number, since it uses as much as digits as its factorization.

124880221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 124880221 is about 11174.9819239227. The cubic root of 124880221 is about 499.8402436279.

The spelling of 124880221 in words is "one hundred twenty-four million, eight hundred eighty thousand, two hundred twenty-one".