204222212 has 6 divisors (see below), whose sum is σ = 357388878. Its totient is φ = 102111104.

The previous prime is 204222209. The next prime is 204222229. The reversal of 204222212 is 212222402.

It can be written as a sum of positive squares in only one way, i.e., 102292996 + 101929216 = 10114^2 + 10096^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25527773 + ... + 25527780.

It is an arithmetic number, because the mean of its divisors is an integer number (59564813).

Almost surely, 2^204222212 is an apocalyptic number.

It is an amenable number.

204222212 is a deficient number, since it is larger than the sum of its proper divisors (153166666).

204222212 is a wasteful number, since it uses less digits than its factorization.

204222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51055557 (or 51055555 counting only the distinct ones).

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

The square root of 204222212 is about 14290.6337158294. The cubic root of 204222212 is about 588.8901975737.

Adding to 204222212 its reverse (212222402), we get a palindrome (416444614).

The spelling of 204222212 in words is "two hundred four million, two hundred twenty-two thousand, two hundred twelve".