211100222331111 has 8 divisors (see below), whose sum is σ = 281515922422000. Its totient is φ = 140709001897152.

The previous prime is 211100222331107. The next prime is 211100222331133. The reversal of 211100222331111 is 111133222001112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211100222331111 - 2² = 211100222331107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211100222331101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6119894110 + ... + 6119928603.

It is an arithmetic number, because the mean of its divisors is an integer number (35189490302750).

Almost surely, 2^{211100222331111} is an apocalyptic number.

211100222331111 is a deficient number, since it is larger than the sum of its proper divisors (70415700090889).

211100222331111 is a wasteful number, since it uses less digits than its factorization.

211100222331111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12239828465.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 211100222331111 its reverse (111133222001112), we get a palindrome (322233444332223).

The spelling of 211100222331111 in words is "two hundred eleven trillion, one hundred billion, two hundred twenty-two million, three hundred thirty-one thousand, one hundred eleven".