204508121226 has 8 divisors (see below), whose sum is σ = 409016242464. Its totient is φ = 68169373740.

The previous prime is 204508121173. The next prime is 204508121267. The reversal of 204508121226 is 622121805402.

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

204508121226 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17042343430 + ... + 17042343441.

It is an arithmetic number, because the mean of its divisors is an integer number (51127030308).

Almost surely, 2^204508121226 is an apocalyptic number.

204508121226 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204508121226 is a wasteful number, since it uses less digits than its factorization.

204508121226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34084686876.

The product of its (nonzero) digits is 15360, while the sum is 33.

Adding to 204508121226 its reverse (622121805402), we get a palindrome (826629926628).

The spelling of 204508121226 in words is "two hundred four billion, five hundred eight million, one hundred twenty-one thousand, two hundred twenty-six".