205400331022 has 8 divisors (see below), whose sum is σ = 324316312200. Its totient is φ = 97294893624.

The previous prime is 205400330977. The next prime is 205400331047. The reversal of 205400331022 is 220133004502.

205400331022 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.

It is a junction number, because it is equal to n+sod(n) for n = 205400330984 and 205400331002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2702635897 + ... + 2702635972.

It is an arithmetic number, because the mean of its divisors is an integer number (40539539025).

Almost surely, 2^205400331022 is an apocalyptic number.

205400331022 is a deficient number, since it is larger than the sum of its proper divisors (118915981178).

205400331022 is a wasteful number, since it uses less digits than its factorization.

205400331022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5405271890.

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 205400331022 its reverse (220133004502), we get a palindrome (425533335524).

The spelling of 205400331022 in words is "two hundred five billion, four hundred million, three hundred thirty-one thousand, twenty-two".