210002121000210 has 192 divisors, whose sum is σ = 633200701658112. Its totient is φ = 43631956368000.

The previous prime is 210002121000193. The next prime is 210002121000233. The reversal of 210002121000210 is 12000121200012.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 230547765 + ... + 231456855.

It is an arithmetic number, because the mean of its divisors is an integer number (3297920321136).

Almost surely, 2^{210002121000210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210002121000210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316600350829056).

210002121000210 is an abundant number, since it is smaller than the sum of its proper divisors (423198580657902).

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

210002121000210 is a wasteful number, since it uses less digits than its factorization.

210002121000210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918221 (or 918210 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210002121000210 its reverse (12000121200012), we get a palindrome (222002242200222).

The spelling of 210002121000210 in words is "two hundred ten trillion, two billion, one hundred twenty-one million, two hundred ten", and thus it is an aban number.