2112101111 has 8 divisors (see below), whose sum is σ = 2127078144. Its totient is φ = 2097165280.

The previous prime is 2112101107. The next prime is 2112101119. The reversal of 2112101111 is 1111012112.

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

It is a cyclic number.

It is not a de Polignac number, because 2112101111 - 2² = 2112101107 is a prime.

It is a super-2 number, since 2×2112101111² = 8921942206174868642, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2112101092 and 2112101101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112101119) 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, 96461 + ... + 116313.

It is an arithmetic number, because the mean of its divisors is an integer number (265884768).

Almost surely, 2^2112101111 is an apocalyptic number.

2112101111 is a deficient number, since it is larger than the sum of its proper divisors (14977033).

2112101111 is a wasteful number, since it uses less digits than its factorization.

2112101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20601.

The product of its (nonzero) digits is 4, while the sum is 11.

The square root of 2112101111 is about 45957.6012320051. The cubic root of 2112101111 is about 1283.0342062299.

Adding to 2112101111 its reverse (1111012112), we get a palindrome (3223113223).

The spelling of 2112101111 in words is "two billion, one hundred twelve million, one hundred one thousand, one hundred eleven".