2112105242 has 16 divisors (see below), whose sum is σ = 3495080232. Its totient is φ = 951041280.

The previous prime is 2112105241. The next prime is 2112105251. The reversal of 2112105242 is 2425012112.

It can be written as a sum of positive squares in 4 ways, for example, as 606587641 + 1505517601 = 24629^2 + 38801^2 .

It is not an unprimeable number, because it can be changed into a prime (2112105241) 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 7 ways as a sum of consecutive naturals, for example, 989603 + ... + 991734.

Almost surely, 2^2112105242 is an apocalyptic number.

2112105242 is a deficient number, since it is larger than the sum of its proper divisors (1382974990).

2112105242 is a wasteful number, since it uses less digits than its factorization.

2112105242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981393.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2112105242 is about 45957.6461755821. The cubic root of 2112105242 is about 1283.0350427130.

Adding to 2112105242 its reverse (2425012112), we get a palindrome (4537117354).

The spelling of 2112105242 in words is "two billion, one hundred twelve million, one hundred five thousand, two hundred forty-two".