20111120010200 has 192 divisors, whose sum is σ = 48297377520000. Its totient is φ = 7783104512000.

The previous prime is 20111120010199. The next prime is 20111120010239. The reversal of 20111120010200 is 201002111102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 783160961 + ... + 783186639.

It is an arithmetic number, because the mean of its divisors is an integer number (251548841250).

Almost surely, 2^{20111120010200} is an apocalyptic number.

20111120010200 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 20111120010200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24148688760000).

20111120010200 is an abundant number, since it is smaller than the sum of its proper divisors (28186257509800).

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

20111120010200 is a wasteful number, since it uses less digits than its factorization.

20111120010200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26526 (or 26517 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20111120010200 its reverse (201002111102), we get a palindrome (20312122121302).

The spelling of 20111120010200 in words is "twenty trillion, one hundred eleven billion, one hundred twenty million, ten thousand, two hundred".