205660122 has 8 divisors (see below), whose sum is σ = 411320256. Its totient is φ = 68553372.

The previous prime is 205660121. The next prime is 205660127. The reversal of 205660122 is 221066502.

205660122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

205660122 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 205660092 and 205660101.

It is not an unprimeable number, because it can be changed into a prime (205660121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17138338 + ... + 17138349.

It is an arithmetic number, because the mean of its divisors is an integer number (51415032).

Almost surely, 2^205660122 is an apocalyptic number.

205660122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205660122 is a wasteful number, since it uses less digits than its factorization.

205660122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34276692.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 205660122 is about 14340.8549954318. The cubic root of 205660122 is about 590.2690738592.

The spelling of 205660122 in words is "two hundred five million, six hundred sixty thousand, one hundred twenty-two".