21000201110112 has 192 divisors, whose sum is σ = 64707940039680. Its totient is φ = 5837477124096.

The previous prime is 21000201110111. The next prime is 21000201110123. The reversal of 21000201110112 is 21101110200012.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21000201110111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 550892589 + ... + 550930707.

It is an arithmetic number, because the mean of its divisors is an integer number (337020521040).

Almost surely, 2^{21000201110112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21000201110112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32353970019840).

21000201110112 is an abundant number, since it is smaller than the sum of its proper divisors (43707738929568).

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

21000201110112 is a wasteful number, since it uses less digits than its factorization.

21000201110112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60333 (or 60325 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 21000201110112 its reverse (21101110200012), we get a palindrome (42101311310124).

The spelling of 21000201110112 in words is "twenty-one trillion, two hundred one million, one hundred ten thousand, one hundred twelve".