50222021 has 2 divisors, whose sum is σ = 50222022. Its totient is φ = 50222020.

The previous prime is 50222017. The next prime is 50222027. The reversal of 50222021 is 12022205.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43744996 + 6477025 = 6614^2 + 2545^2 .

It is a cyclic number.

It is not a de Polignac number, because 50222021 - 2² = 50222017 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 50221987 and 50222005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50222027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25111010 + 25111011.

It is an arithmetic number, because the mean of its divisors is an integer number (25111011).

Almost surely, 2^50222021 is an apocalyptic number.

It is an amenable number.

50222021 is a deficient number, since it is larger than the sum of its proper divisors (1).

50222021 is an equidigital number, since it uses as much as digits as its factorization.

50222021 is an evil number, because the sum of its binary digits is even.

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

The square root of 50222021 is about 7086.7496780964. The cubic root of 50222021 is about 368.9476329845.

Adding to 50222021 its reverse (12022205), we get a palindrome (62244226).

The spelling of 50222021 in words is "fifty million, two hundred twenty-two thousand, twenty-one".