204122102402 has 4 divisors (see below), whose sum is σ = 306183153606. Its totient is φ = 102061051200.

The previous prime is 204122102369. The next prime is 204122102411. The reversal of 204122102402 is 204201221402.

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., 202635922801 + 1486179601 = 450151^2 + 38551^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51030525599 + ... + 51030525602.

Almost surely, 2^204122102402 is an apocalyptic number.

204122102402 is a deficient number, since it is larger than the sum of its proper divisors (102061051204).

204122102402 is a wasteful number, since it uses less digits than its factorization.

204122102402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102061051203.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 204122102402 its reverse (204201221402), we get a palindrome (408323323804).

The spelling of 204122102402 in words is "two hundred four billion, one hundred twenty-two million, one hundred two thousand, four hundred two".