50022170221 has 2 divisors, whose sum is σ = 50022170222. Its totient is φ = 50022170220.

The previous prime is 50022170179. The next prime is 50022170227. The reversal of 50022170221 is 12207122005.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32225276196 + 17796894025 = 179514^2 + 133405^2 .

It is a cyclic number.

It is not a de Polignac number, because 50022170221 - 2¹¹ = 50022168173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50022170192 and 50022170201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50022170227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25011085110 + 25011085111.

It is an arithmetic number, because the mean of its divisors is an integer number (25011085111).

Almost surely, 2^50022170221 is an apocalyptic number.

It is an amenable number.

50022170221 is a deficient number, since it is larger than the sum of its proper divisors (1).

50022170221 is an equidigital number, since it uses as much as digits as its factorization.

50022170221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 22.

Adding to 50022170221 its reverse (12207122005), we get a palindrome (62229292226).

The spelling of 50022170221 in words is "fifty billion, twenty-two million, one hundred seventy thousand, two hundred twenty-one".