205204212 has 48 divisors (see below), whose sum is σ = 563310720. Its totient is φ = 64377216.

The previous prime is 205204211. The next prime is 205204243. The reversal of 205204212 is 212402502.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205204211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54048 + ... + 57719.

It is an arithmetic number, because the mean of its divisors is an integer number (11735640).

Almost surely, 2^205204212 is an apocalyptic number.

It is an amenable number.

205204212 is an abundant number, since it is smaller than the sum of its proper divisors (358106508).

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

205204212 is a wasteful number, since it uses less digits than its factorization.

205204212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111797 (or 111789 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 205204212 is about 14324.9506805434. The cubic root of 205204212 is about 589.8325791363.

Adding to 205204212 its reverse (212402502), we get a palindrome (417606714).

The spelling of 205204212 in words is "two hundred five million, two hundred four thousand, two hundred twelve".