205155122204 has 12 divisors (see below), whose sum is σ = 359925802824. Its totient is φ = 102319178544.

The previous prime is 205155122203. The next prime is 205155122219. The reversal of 205155122204 is 402221551502.

It is a happy number.

205155122204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205155122203) by changing a digit.

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, 64593854 + ... + 64597029.

It is an arithmetic number, because the mean of its divisors is an integer number (29993816902).

Almost surely, 2^205155122204 is an apocalyptic number.

It is an amenable number.

205155122204 is a deficient number, since it is larger than the sum of its proper divisors (154770680620).

205155122204 is a wasteful number, since it uses less digits than its factorization.

205155122204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129191284 (or 129191282 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

Adding to 205155122204 its reverse (402221551502), we get a palindrome (607376673706).

The spelling of 205155122204 in words is "two hundred five billion, one hundred fifty-five million, one hundred twenty-two thousand, two hundred four".