211100101100 has 72 divisors (see below), whose sum is σ = 523939799040. Its totient is φ = 72320281920.

The previous prime is 211100101097. The next prime is 211100101109. The reversal of 211100101100 is 1101001112.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (211100101109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 777407 + ... + 1013193.

Almost surely, 2^211100101100 is an apocalyptic number.

211100101100 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 211100101100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261969899520).

211100101100 is an abundant number, since it is smaller than the sum of its proper divisors (312839697940).

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

211100101100 is a wasteful number, since it uses less digits than its factorization.

211100101100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237087 (or 237080 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 211100101100 its reverse (1101001112), we get a palindrome (212201102212).

The spelling of 211100101100 in words is "two hundred eleven billion, one hundred million, one hundred one thousand, one hundred".