11201002100020 has 48 divisors (see below), whose sum is σ = 23863879005120. Its totient is φ = 4415628881664.

The previous prime is 11201002100003. The next prime is 11201002100069. The reversal of 11201002100020 is 2000120010211.

It is a Harshad number since it is a multiple of its sum of digits (10).

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 15 ways as a sum of consecutive naturals, for example, 9702234 + ... + 10795153.

It is an arithmetic number, because the mean of its divisors is an integer number (497164145940).

Almost surely, 2^{11201002100020} is an apocalyptic number.

11201002100020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11201002100020 is an abundant number, since it is smaller than the sum of its proper divisors (12662876905100).

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

11201002100020 is a wasteful number, since it uses less digits than its factorization.

11201002100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20497792 (or 20497790 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11201002100020 its reverse (2000120010211), we get a palindrome (13201122110231).

The spelling of 11201002100020 in words is "eleven trillion, two hundred one billion, two million, one hundred thousand, twenty".