205702202122 has 16 divisors (see below), whose sum is σ = 312038973000. Its totient is φ = 101689350400.

The previous prime is 205702202119. The next prime is 205702202143. The reversal of 205702202122 is 221202207502.

205702202122 is digitally balanced in base 2, 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 189783080881 + 15919121241 = 435641^2 + 126171^2 .

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 7 ways as a sum of consecutive naturals, for example, 4864872 + ... + 4906972.

Almost surely, 2^205702202122 is an apocalyptic number.

205702202122 is a deficient number, since it is larger than the sum of its proper divisors (106336770878).

205702202122 is a wasteful number, since it uses less digits than its factorization.

205702202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69641.

The product of its (nonzero) digits is 2240, while the sum is 25.

Adding to 205702202122 its reverse (221202207502), we get a palindrome (426904409624).

The spelling of 205702202122 in words is "two hundred five billion, seven hundred two million, two hundred two thousand, one hundred twenty-two".