20001101110200 has 480 divisors, whose sum is σ = 80132631004800. Its totient is φ = 4528951522560.

The previous prime is 20001101110171. The next prime is 20001101110301. The reversal of 20001101110200 is 201110110002.

It is a happy number.

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

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

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 119 ways as a sum of consecutive naturals, for example, 11309611 + ... + 12957989.

It is an arithmetic number, because the mean of its divisors is an integer number (166942981260).

Almost surely, 2^{20001101110200} is an apocalyptic number.

20001101110200 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 20001101110200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40066315502400).

20001101110200 is an abundant number, since it is smaller than the sum of its proper divisors (60131529894600).

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

20001101110200 is a wasteful number, since it uses less digits than its factorization.

20001101110200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648521 (or 1648503 counting only the distinct ones).

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

Adding to 20001101110200 its reverse (201110110002), we get a palindrome (20202211220202).

The spelling of 20001101110200 in words is "twenty trillion, one billion, one hundred one million, one hundred ten thousand, two hundred".