211100200011 has 24 divisors (see below), whose sum is σ = 312171116400. Its totient is φ = 137391258816.

The previous prime is 211100200009. The next prime is 211100200027. The reversal of 211100200011 is 110002001112.

It is a happy number.

It is not a de Polignac number, because 211100200011 - 2¹ = 211100200009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 211100199966 and 211100200002.

It is not an unprimeable number, because it can be changed into a prime (211100200061) 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, 636265 + ... + 909413.

It is an arithmetic number, because the mean of its divisors is an integer number (13007129850).

Almost surely, 2^211100200011 is an apocalyptic number.

211100200011 is a deficient number, since it is larger than the sum of its proper divisors (101070916389).

211100200011 is a wasteful number, since it uses less digits than its factorization.

211100200011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275195 (or 275192 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 211100200011 its reverse (110002001112), we get a palindrome (321102201123).

The spelling of 211100200011 in words is "two hundred eleven billion, one hundred million, two hundred thousand, eleven".