210001202100 has 288 divisors, whose sum is σ = 688009714560. Its totient is φ = 54937681920.

The previous prime is 210001202063. The next prime is 210001202111. The reversal of 210001202100 is 1202100012.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

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, 46489042 + ... + 46493558.

It is an arithmetic number, because the mean of its divisors is an integer number (2388922620).

Almost surely, 2^210001202100 is an apocalyptic number.

210001202100 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 210001202100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (344004857280).

210001202100 is an abundant number, since it is smaller than the sum of its proper divisors (478008512460).

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

210001202100 is a wasteful number, since it uses less digits than its factorization.

210001202100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4864 (or 4851 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 210001202100 its reverse (1202100012), we get a palindrome (211203302112).

The spelling of 210001202100 in words is "two hundred ten billion, one million, two hundred two thousand, one hundred".