205002122 has 16 divisors (see below), whose sum is σ = 333273192. Its totient is φ = 94011840.

The previous prime is 205002121. The next prime is 205002137. The reversal of 205002122 is 221200502.

205002122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 80478841 + 124523281 = 8971^2 + 11159^2 .

It is a junction number, because it is equal to n+sod(n) for n = 205002097 and 205002106.

It is not an unprimeable number, because it can be changed into a prime (205002121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21029 + ... + 29192.

Almost surely, 2^205002122 is an apocalyptic number.

205002122 is a deficient number, since it is larger than the sum of its proper divisors (128271070).

205002122 is a wasteful number, since it uses less digits than its factorization.

205002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50393.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 205002122 is about 14317.8951665390. The cubic root of 205002122 is about 589.6388884769.

Adding to 205002122 its reverse (221200502), we get a palindrome (426202624).

It can be divided in two parts, 20500 and 2122, that added together give a palindrome (22622).

The spelling of 205002122 in words is "two hundred five million, two thousand, one hundred twenty-two".