204222204066 has 64 divisors (see below), whose sum is σ = 424228608000. Its totient is φ = 65496720960.

The previous prime is 204222204061. The next prime is 204222204091. The reversal of 204222204066 is 660402222402.

It is not an unprimeable number, because it can be changed into a prime (204222204061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9417276 + ... + 9438936.

It is an arithmetic number, because the mean of its divisors is an integer number (6628572000).

Almost surely, 2^204222204066 is an apocalyptic number.

204222204066 is an abundant number, since it is smaller than the sum of its proper divisors (220006403934).

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

204222204066 is a wasteful number, since it uses less digits than its factorization.

204222204066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22279.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 204222204066 its reverse (660402222402), we get a palindrome (864624426468).

The spelling of 204222204066 in words is "two hundred four billion, two hundred twenty-two million, two hundred four thousand, sixty-six".