205060221 has 16 divisors (see below), whose sum is σ = 307641600. Its totient is φ = 134974944.

The previous prime is 205060211. The next prime is 205060241. The reversal of 205060221 is 122060502.

It is not a de Polignac number, because 205060221 - 2⁹ = 205059709 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 205060194 and 205060203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205060211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45936 + ... + 50201.

It is an arithmetic number, because the mean of its divisors is an integer number (19227600).

Almost surely, 2^205060221 is an apocalyptic number.

It is an amenable number.

205060221 is a deficient number, since it is larger than the sum of its proper divisors (102581379).

205060221 is an equidigital number, since it uses as much as digits as its factorization.

205060221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96225 (or 96219 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 205060221 is about 14319.9239173957. The cubic root of 205060221 is about 589.6945857768.

The spelling of 205060221 in words is "two hundred five million, sixty thousand, two hundred twenty-one".