2120112105 has 8 divisors (see below), whose sum is σ = 3392179392. Its totient is φ = 1130726448.

The previous prime is 2120112097. The next prime is 2120112107. The reversal of 2120112105 is 5012110212.

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

It is not a de Polignac number, because 2120112105 - 2³ = 2120112097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 141340807 = 2120112105 / (2 + 1 + 2 + 0 + 1 + 1 + 2 + 1 + 0 + 5).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2120112107) 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, 70670389 + ... + 70670418.

It is an arithmetic number, because the mean of its divisors is an integer number (424022424).

Almost surely, 2^2120112105 is an apocalyptic number.

It is an amenable number.

2120112105 is a deficient number, since it is larger than the sum of its proper divisors (1272067287).

2120112105 is a wasteful number, since it uses less digits than its factorization.

2120112105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141340815.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 2120112105 is about 46044.6750992989. The cubic root of 2120112105 is about 1284.6543009662.

Adding to 2120112105 its reverse (5012110212), we get a palindrome (7132222317).

The spelling of 2120112105 in words is "two billion, one hundred twenty million, one hundred twelve thousand, one hundred five".