250200221 has 2 divisors, whose sum is σ = 250200222. Its totient is φ = 250200220.

The previous prime is 250200217. The next prime is 250200277. The reversal of 250200221 is 122002052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209380900 + 40819321 = 14470^2 + 6389^2 .

It is a cyclic number.

It is not a de Polignac number, because 250200221 - 2² = 250200217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 250200196 and 250200205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (250200281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125100110 + 125100111.

It is an arithmetic number, because the mean of its divisors is an integer number (125100111).

Almost surely, 2^250200221 is an apocalyptic number.

It is an amenable number.

250200221 is a deficient number, since it is larger than the sum of its proper divisors (1).

250200221 is an equidigital number, since it uses as much as digits as its factorization.

250200221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 250200221 is about 15817.7185775952. The cubic root of 250200221 is about 630.1286551728.

Adding to 250200221 its reverse (122002052), we get a palindrome (372202273).

The spelling of 250200221 in words is "two hundred fifty million, two hundred thousand, two hundred twenty-one".