204121002 has 16 divisors (see below), whose sum is σ = 415162080. Its totient is φ = 66886992.

The previous prime is 204120997. The next prime is 204121003. The reversal of 204121002 is 200121402.

It is not an unprimeable number, because it can be changed into a prime (204121003) 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 7 ways as a sum of consecutive naturals, for example, 287953 + ... + 288660.

It is an arithmetic number, because the mean of its divisors is an integer number (25947630).

Almost surely, 2^204121002 is an apocalyptic number.

204121002 is an abundant number, since it is smaller than the sum of its proper divisors (211041078).

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

204121002 is a wasteful number, since it uses less digits than its factorization.

204121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576677.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 204121002 is about 14287.0921464096. The cubic root of 204121002 is about 588.7928992681.

Adding to 204121002 its reverse (200121402), we get a palindrome (404242404).

The spelling of 204121002 in words is "two hundred four million, one hundred twenty-one thousand, two".