20110001200100 has 144 divisors (see below), whose sum is σ = 50054267738496. Its totient is φ = 6869816064000.

The previous prime is 20110001200087. The next prime is 20110001200127. The reversal of 20110001200100 is 100210001102.

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 47 ways as a sum of consecutive naturals, for example, 213160940 + ... + 213255260.

Almost surely, 2^{20110001200100} is an apocalyptic number.

20110001200100 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 20110001200100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25027133869248).

20110001200100 is an abundant number, since it is smaller than the sum of its proper divisors (29944266538396).

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

20110001200100 is a wasteful number, since it uses less digits than its factorization.

20110001200100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95446 (or 95439 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 20110001200100 its reverse (100210001102), we get a palindrome (20210211201202).

The spelling of 20110001200100 in words is "twenty trillion, one hundred ten billion, one million, two hundred thousand, one hundred".