205321335046122 has 32 divisors (see below), whose sum is σ = 417166026232320. Its totient is φ = 67356643328240.

The previous prime is 205321335046019. The next prime is 205321335046141. The reversal of 205321335046122 is 221640533123502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 427801872 + ... + 428281547.

It is an arithmetic number, because the mean of its divisors is an integer number (13036438319760).

Almost surely, 2^{205321335046122} is an apocalyptic number.

205321335046122 is an abundant number, since it is smaller than the sum of its proper divisors (211844691186198).

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

205321335046122 is a wasteful number, since it uses less digits than its factorization.

205321335046122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856084058.

The product of its (nonzero) digits is 259200, while the sum is 39.

Adding to 205321335046122 its reverse (221640533123502), we get a palindrome (426961868169624).

The spelling of 205321335046122 in words is "two hundred five trillion, three hundred twenty-one billion, three hundred thirty-five million, forty-six thousand, one hundred twenty-two".