210101210000 has 200 divisors, whose sum is σ = 560443200768. Its totient is φ = 75640000000.

The previous prime is 210101209979. The next prime is 210101210003. The reversal of 210101210000 is 12101012.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 210101210000.

It is not an unprimeable number, because it can be changed into a prime (210101210003) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11100545 + ... + 11119455.

Almost surely, 2^210101210000 is an apocalyptic number.

210101210000 is a gapful number since it is divisible by the number (20) 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 210101210000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280221600384).

210101210000 is an abundant number, since it is smaller than the sum of its proper divisors (350341990768).

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

210101210000 is a wasteful number, since it uses less digits than its factorization.

210101210000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19051 (or 19030 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 210101210000 its reverse (12101012), we get a palindrome (210113311012).

The spelling of 210101210000 in words is "two hundred ten billion, one hundred one million, two hundred ten thousand".