2112142105 has 8 divisors (see below), whose sum is σ = 2537170632. Its totient is φ = 1687980288.

The previous prime is 2112142079. The next prime is 2112142111. The reversal of 2112142105 is 5012412112.

It can be written as a sum of positive squares in 4 ways, for example, as 886371984 + 1225770121 = 29772^2 + 35011^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2112142105 - 2⁵ = 2112142073 is a prime.

It is a super-2 number, since 2×2112142105² = 8922288543427662050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211302 + ... + 221071.

It is an arithmetic number, because the mean of its divisors is an integer number (317146329).

Almost surely, 2^2112142105 is an apocalyptic number.

It is an amenable number.

2112142105 is a deficient number, since it is larger than the sum of its proper divisors (425028527).

2112142105 is an equidigital number, since it uses as much as digits as its factorization.

2112142105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433355.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 2112142105 is about 45958.0472278795. The cubic root of 2112142105 is about 1283.0425070263.

Adding to 2112142105 its reverse (5012412112), we get a palindrome (7124554217).

The spelling of 2112142105 in words is "two billion, one hundred twelve million, one hundred forty-two thousand, one hundred five".