204420122 has 8 divisors (see below), whose sum is σ = 307431936. Its totient is φ = 101942812.

The previous prime is 204420109. The next prime is 204420143. The reversal of 204420122 is 221024402.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 204420122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132668 + ... + 134199.

It is an arithmetic number, because the mean of its divisors is an integer number (38428992).

Almost surely, 2^204420122 is an apocalyptic number.

204420122 is a deficient number, since it is larger than the sum of its proper divisors (103011814).

204420122 is a wasteful number, since it uses less digits than its factorization.

204420122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267252.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 204420122 is about 14297.5565045220. The cubic root of 204420122 is about 589.0803656424.

Adding to 204420122 its reverse (221024402), we get a palindrome (425444524).

The spelling of 204420122 in words is "two hundred four million, four hundred twenty thousand, one hundred twenty-two".