204142185122 has 8 divisors (see below), whose sum is σ = 306515564316. Its totient is φ = 101970330352.

The previous prime is 204142185083. The next prime is 204142185133. The reversal of 204142185122 is 221581241402.

204142185122 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 2 ways, for example, as 128114600761 + 76027584361 = 357931^2 + 275731^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 50378573 + ... + 50382624.

Almost surely, 2^204142185122 is an apocalyptic number.

204142185122 is a deficient number, since it is larger than the sum of its proper divisors (102373379194).

204142185122 is a wasteful number, since it uses less digits than its factorization.

204142185122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100762212.

The product of its (nonzero) digits is 10240, while the sum is 32.

The spelling of 204142185122 in words is "two hundred four billion, one hundred forty-two million, one hundred eighty-five thousand, one hundred twenty-two".