2111012211111 has 8 divisors (see below), whose sum is σ = 2814847052160. Its totient is φ = 1407259422072.

The previous prime is 2111012211059. The next prime is 2111012211127. The reversal of 2111012211111 is 1111122101112.

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

It is not a de Polignac number, because 2111012211111 - 2¹⁵ = 2111012178343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111012211211) 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, 20452945 + ... + 20555898.

It is an arithmetic number, because the mean of its divisors is an integer number (351855881520).

Almost surely, 2^{2111012211111} is an apocalyptic number.

2111012211111 is a deficient number, since it is larger than the sum of its proper divisors (703834841049).

2111012211111 is a wasteful number, since it uses less digits than its factorization.

2111012211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41026005.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 2111012211111 its reverse (1111122101112), we get a palindrome (3222134312223).

The spelling of 2111012211111 in words is "two trillion, one hundred eleven billion, twelve million, two hundred eleven thousand, one hundred eleven".