2111112215 has 4 divisors (see below), whose sum is σ = 2533334664. Its totient is φ = 1688889768.

The previous prime is 2111112191. The next prime is 2111112229. The reversal of 2111112215 is 5122111112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2111112215 - 2⁶ = 2111112151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111112193 and 2111112202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211111217 + ... + 211111226.

It is an arithmetic number, because the mean of its divisors is an integer number (633333666).

Almost surely, 2^2111112215 is an apocalyptic number.

2111112215 is a deficient number, since it is larger than the sum of its proper divisors (422222449).

2111112215 is an equidigital number, since it uses as much as digits as its factorization.

2111112215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422222448.

The product of its digits is 40, while the sum is 17.

The square root of 2111112215 is about 45946.8411863101. The cubic root of 2111112215 is about 1282.8339340212.

Adding to 2111112215 its reverse (5122111112), we get a palindrome (7233223327).

The spelling of 2111112215 in words is "two billion, one hundred eleven million, one hundred twelve thousand, two hundred fifteen".