204212201 has 6 divisors (see below), whose sum is σ = 207618606. Its totient is φ = 200860800.

The previous prime is 204212179. The next prime is 204212207. The reversal of 204212201 is 102212402.

It can be written as a sum of positive squares in 3 ways, for example, as 44568976 + 159643225 = 6676^2 + 12635^2 .

It is a de Polignac number, because none of the positive numbers 2^k-204212201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204212207) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 23720 + ... + 31161.

It is an arithmetic number, because the mean of its divisors is an integer number (34603101).

Almost surely, 2^204212201 is an apocalyptic number.

It is an amenable number.

204212201 is a deficient number, since it is larger than the sum of its proper divisors (3406405).

204212201 is an frugal number, since it uses more digits than its factorization.

204212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55003 (or 54942 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 204212201 is about 14290.2834471539. The cubic root of 204212201 is about 588.8805749245.

Adding to 204212201 its reverse (102212402), we get a palindrome (306424603).

It can be divided in two parts, 20421 and 2201, that added together give a palindrome (22622).

The spelling of 204212201 in words is "two hundred four million, two hundred twelve thousand, two hundred one".