2112021105 has 16 divisors (see below), whose sum is σ = 3410817984. Its totient is φ = 1115883200.

The previous prime is 2112021073. The next prime is 2112021127. The reversal of 2112021105 is 5011202112.

It is not a de Polignac number, because 2112021105 - 2⁵ = 2112021073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 656346 + ... + 659555.

It is an arithmetic number, because the mean of its divisors is an integer number (213176124).

Almost surely, 2^2112021105 is an apocalyptic number.

It is an amenable number.

2112021105 is a deficient number, since it is larger than the sum of its proper divisors (1298796879).

2112021105 is a wasteful number, since it uses less digits than its factorization.

2112021105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316016.

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

The square root of 2112021105 is about 45956.7307910387. The cubic root of 2112021105 is about 1283.0180056591.

Adding to 2112021105 its reverse (5011202112), we get a palindrome (7123223217).

The spelling of 2112021105 in words is "two billion, one hundred twelve million, twenty-one thousand, one hundred five".