21010113332200 has 96 divisors (see below), whose sum is σ = 49818803580000. Its totient is φ = 8237930054400.

The previous prime is 21010113332171. The next prime is 21010113332311. The reversal of 21010113332200 is 223331101012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1567315 + ... + 6669085.

It is an arithmetic number, because the mean of its divisors is an integer number (518945870625).

Almost surely, 2^{21010113332200} is an apocalyptic number.

21010113332200 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 21010113332200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24909401790000).

21010113332200 is an abundant number, since it is smaller than the sum of its proper divisors (28808690247800).

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

21010113332200 is a wasteful number, since it uses less digits than its factorization.

21010113332200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5102195 (or 5102186 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21010113332200 its reverse (223331101012), we get a palindrome (21233444433212).

The spelling of 21010113332200 in words is "twenty-one trillion, ten billion, one hundred thirteen million, three hundred thirty-two thousand, two hundred".