2112107969 has 4 divisors (see below), whose sum is σ = 2125561044. Its totient is φ = 2098654896.

The previous prime is 2112107939. The next prime is 2112107993. The reversal of 2112107969 is 9697012112.

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

It can be written as a sum of positive squares in 2 ways, for example, as 201980944 + 1910127025 = 14212^2 + 43705^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112107969 - 2²⁸ = 1843672513 is a prime.

It is a super-2 number, since 2×2112107969² = 8922000145426609922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2112107909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6726302 + ... + 6726615.

It is an arithmetic number, because the mean of its divisors is an integer number (531390261).

Almost surely, 2^2112107969 is an apocalyptic number.

It is an amenable number.

2112107969 is a deficient number, since it is larger than the sum of its proper divisors (13453075).

2112107969 is a wasteful number, since it uses less digits than its factorization.

2112107969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13453074.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 2112107969 is about 45957.6758441939. The cubic root of 2112107969 is about 1283.0355949007.

The spelling of 2112107969 in words is "two billion, one hundred twelve million, one hundred seven thousand, nine hundred sixty-nine".