204021000210 has 64 divisors (see below), whose sum is σ = 511921140480. Its totient is φ = 51940162560.

The previous prime is 204021000143. The next prime is 204021000217. The reversal of 204021000210 is 12000120402.

It is not an unprimeable number, because it can be changed into a prime (204021000217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75726 + ... + 643254.

It is an arithmetic number, because the mean of its divisors is an integer number (7998767820).

Almost surely, 2^204021000210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204021000210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255960570240).

204021000210 is an abundant number, since it is smaller than the sum of its proper divisors (307900140270).

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

204021000210 is a wasteful number, since it uses less digits than its factorization.

204021000210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568083.

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

Adding to 204021000210 its reverse (12000120402), we get a palindrome (216021120612).

The spelling of 204021000210 in words is "two hundred four billion, twenty-one million, two hundred ten", and thus it is an aban number.