204311202122 has 4 divisors (see below), whose sum is σ = 306466803186. Its totient is φ = 102155601060.

The previous prime is 204311202113. The next prime is 204311202229. The reversal of 204311202122 is 221202113402.

204311202122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 177115564201 + 27195637921 = 420851^2 + 164911^2 .

It is a junction number, because it is equal to n+sod(n) for n = 204311202094 and 204311202103.

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 as a sum of consecutive naturals, namely, 51077800529 + ... + 51077800532.

Almost surely, 2^204311202122 is an apocalyptic number.

204311202122 is a deficient number, since it is larger than the sum of its proper divisors (102155601064).

204311202122 is a wasteful number, since it uses less digits than its factorization.

204311202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102155601063.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 204311202122 its reverse (221202113402), we get a palindrome (425513315524).

The spelling of 204311202122 in words is "two hundred four billion, three hundred eleven million, two hundred two thousand, one hundred twenty-two".