204101212 has 24 divisors (see below), whose sum is σ = 408568160. Its totient is φ = 87393600.

The previous prime is 204101203. The next prime is 204101231. The reversal of 204101212 is 212101402.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 204101192 and 204101201.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 37462 + ... + 42562.

Almost surely, 2^204101212 is an apocalyptic number.

It is an amenable number.

204101212 is an abundant number, since it is smaller than the sum of its proper divisors (204466948).

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

204101212 is a wasteful number, since it uses less digits than its factorization.

204101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6541 (or 6539 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 204101212 is about 14286.3995464218. The cubic root of 204101212 is about 588.7738703785.

Adding to 204101212 its reverse (212101402), we get a palindrome (416202614).

The spelling of 204101212 in words is "two hundred four million, one hundred one thousand, two hundred twelve".