2111102011100 has 18 divisors (see below), whose sum is σ = 4581091364304. Its totient is φ = 844440804400.

The previous prime is 2111102011091. The next prime is 2111102011141. The reversal of 2111102011100 is 11102011112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10555509956 + ... + 10555510155.

Almost surely, 2^{2111102011100} is an apocalyptic number.

2111102011100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111102011100 is an abundant number, since it is smaller than the sum of its proper divisors (2469989353204).

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

2111102011100 is a wasteful number, since it uses less digits than its factorization.

2111102011100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21111020125 (or 21111020118 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 2111102011100 its reverse (11102011112), we get a palindrome (2122204022212).

The spelling of 2111102011100 in words is "two trillion, one hundred eleven billion, one hundred two million, eleven thousand, one hundred".