2112302191 has 4 divisors (see below), whose sum is σ = 2115145872. Its totient is φ = 2109458512.

The previous prime is 2112302113. The next prime is 2112302197. The reversal of 2112302191 is 1912032112.

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 2112302191 - 2⁷ = 2112302063 is a prime.

It is a super-2 number, since 2×2112302191² = 8923641092206800962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112302197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1420726 + ... + 1422211.

It is an arithmetic number, because the mean of its divisors is an integer number (528786468).

Almost surely, 2^2112302191 is an apocalyptic number.

2112302191 is a deficient number, since it is larger than the sum of its proper divisors (2843681).

2112302191 is an equidigital number, since it uses as much as digits as its factorization.

2112302191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2843680.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 2112302191 is about 45959.7888485141. The cubic root of 2112302191 is about 1283.0749215047.

The spelling of 2112302191 in words is "two billion, one hundred twelve million, three hundred two thousand, one hundred ninety-one".