211100022211 has 16 divisors (see below), whose sum is σ = 232464302784. Its totient is φ = 190494555264.

The previous prime is 211100022209. The next prime is 211100022227. The reversal of 211100022211 is 112220001112.

It is not a de Polignac number, because 211100022211 - 2¹ = 211100022209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211100022191 and 211100022200.

It is not an unprimeable number, because it can be changed into a prime (211100022281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362191 + ... + 743896.

It is an arithmetic number, because the mean of its divisors is an integer number (14529018924).

Almost surely, 2^211100022211 is an apocalyptic number.

211100022211 is a deficient number, since it is larger than the sum of its proper divisors (21364280573).

211100022211 is a wasteful number, since it uses less digits than its factorization.

211100022211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106430.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 211100022211 its reverse (112220001112), we get a palindrome (323320023323).

The spelling of 211100022211 in words is "two hundred eleven billion, one hundred million, twenty-two thousand, two hundred eleven".