50010221 has 2 divisors, whose sum is σ = 50010222. Its totient is φ = 50010220.

The previous prime is 50010197. The next prime is 50010227. The reversal of 50010221 is 12201005.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25110121 + 24900100 = 5011^2 + 4990^2 .

It is a cyclic number.

It is not a de Polignac number, because 50010221 - 2⁶ = 50010157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50010227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25005110 + 25005111.

It is an arithmetic number, because the mean of its divisors is an integer number (25005111).

Almost surely, 2^50010221 is an apocalyptic number.

It is an amenable number.

50010221 is a deficient number, since it is larger than the sum of its proper divisors (1).

50010221 is an equidigital number, since it uses as much as digits as its factorization.

50010221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 50010221 is about 7071.7905087750. The cubic root of 50010221 is about 368.4282511443.

Adding to 50010221 its reverse (12201005), we get a palindrome (62211226).

The spelling of 50010221 in words is "fifty million, ten thousand, two hundred twenty-one".