250124221 has 2 divisors, whose sum is σ = 250124222. Its totient is φ = 250124220.

The previous prime is 250124219. The next prime is 250124233. The reversal of 250124221 is 122421052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 245548900 + 4575321 = 15670^2 + 2139^2 .

It is a cyclic number.

It is not a de Polignac number, because 250124221 - 2¹ = 250124219 is a prime.

Together with 250124219, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (250124521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125062110 + 125062111.

It is an arithmetic number, because the mean of its divisors is an integer number (125062111).

Almost surely, 2^250124221 is an apocalyptic number.

It is an amenable number.

250124221 is a deficient number, since it is larger than the sum of its proper divisors (1).

250124221 is an equidigital number, since it uses as much as digits as its factorization.

250124221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 250124221 is about 15815.3160259288. The cubic root of 250124221 is about 630.0648467726.

Adding to 250124221 its reverse (122421052), we get a palindrome (372545273).

The spelling of 250124221 in words is "two hundred fifty million, one hundred twenty-four thousand, two hundred twenty-one".