211211111103 has 8 divisors (see below), whose sum is σ = 282168087600. Its totient is φ = 140530771008.

The previous prime is 211211111099. The next prime is 211211111113. The reversal of 211211111103 is 301111112112.

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

It is not a de Polignac number, because 211211111103 - 2² = 211211111099 is a prime.

It is a super-2 number, since 2×211211111103² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211211111113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69157318 + ... + 69160371.

It is an arithmetic number, because the mean of its divisors is an integer number (35271010950).

Almost surely, 2^211211111103 is an apocalyptic number.

211211111103 is a deficient number, since it is larger than the sum of its proper divisors (70956976497).

211211111103 is a wasteful number, since it uses less digits than its factorization.

211211111103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138318201.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 211211111103 its reverse (301111112112), we get a palindrome (512322223215).

The spelling of 211211111103 in words is "two hundred eleven billion, two hundred eleven million, one hundred eleven thousand, one hundred three".