2011111002100 has 36 divisors (see below), whose sum is σ = 4364281723648. Its totient is φ = 804412908000.

The previous prime is 2011111002067. The next prime is 2011111002119. The reversal of 2011111002100 is 12001111102.

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 polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2262655 + ... + 3023545.

Almost surely, 2^{2011111002100} is an apocalyptic number.

2011111002100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011111002100 is an abundant number, since it is smaller than the sum of its proper divisors (2353170721548).

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

2011111002100 is a wasteful number, since it uses less digits than its factorization.

2011111002100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787336 (or 787329 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 2011111002100 its reverse (12001111102), we get a palindrome (2023112113202).

It can be divided in two parts, 2011111002 and 100, that added together give a palindrome (2011111102).

The spelling of 2011111002100 in words is "two trillion, eleven billion, one hundred eleven million, two thousand, one hundred".