205522106 has 8 divisors (see below), whose sum is σ = 310247220. Its totient is φ = 102106368.

The previous prime is 205522099. The next prime is 205522127. The reversal of 205522106 is 601225502.

It can be written as a sum of positive squares in 2 ways, for example, as 202066225 + 3455881 = 14215^2 + 1859^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326951 + ... + 327578.

Almost surely, 2^205522106 is an apocalyptic number.

205522106 is a deficient number, since it is larger than the sum of its proper divisors (104725114).

205522106 is a wasteful number, since it uses less digits than its factorization.

205522106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654688.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 205522106 is about 14336.0422013888. The cubic root of 205522106 is about 590.1370035187.

Adding to 205522106 its reverse (601225502), we get a palindrome (806747608).

The spelling of 205522106 in words is "two hundred five million, five hundred twenty-two thousand, one hundred six".