204130212 has 96 divisors (see below), whose sum is σ = 571705344. Its totient is φ = 55862400.

The previous prime is 204130211. The next prime is 204130219. The reversal of 204130212 is 212031402.

It is a junction number, because it is equal to n+sod(n) for n = 204130191 and 204130200.

It is not an unprimeable number, because it can be changed into a prime (204130211) 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 31 ways as a sum of consecutive naturals, for example, 79387 + ... + 81917.

It is an arithmetic number, because the mean of its divisors is an integer number (5955264).

Almost surely, 2^204130212 is an apocalyptic number.

204130212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204130212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285852672).

204130212 is an abundant number, since it is smaller than the sum of its proper divisors (367575132).

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

204130212 is a wasteful number, since it uses less digits than its factorization.

204130212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2609 (or 2607 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 204130212 is about 14287.4144616862. The cubic root of 204130212 is about 588.8017546382.

Adding to 204130212 its reverse (212031402), we get a palindrome (416161614).

The spelling of 204130212 in words is "two hundred four million, one hundred thirty thousand, two hundred twelve".