210101011200 has 324 divisors, whose sum is σ = 753871289080. Its totient is φ = 55824629760.

The previous prime is 210101011189. The next prime is 210101011201. The reversal of 210101011200 is 2110101012.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (210101011201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 16294356 + ... + 16307244.

Almost surely, 2^210101011200 is an apocalyptic number.

210101011200 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 210101011200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (376935644540).

210101011200 is an abundant number, since it is smaller than the sum of its proper divisors (543770277880).

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

210101011200 is a wasteful number, since it uses less digits than its factorization.

210101011200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13204 (or 13182 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 210101011200 its reverse (2110101012), we get a palindrome (212211112212).

The spelling of 210101011200 in words is "two hundred ten billion, one hundred one million, eleven thousand, two hundred".