2121044105 has 8 divisors (see below), whose sum is σ = 2546033472. Its totient is φ = 1696314928.

The previous prime is 2121044089. The next prime is 2121044111. The reversal of 2121044105 is 5014401212.

It is a happy number.

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 2121044105 - 2⁴ = 2121044089 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46637 + ... + 80106.

It is an arithmetic number, because the mean of its divisors is an integer number (318254184).

Almost surely, 2^2121044105 is an apocalyptic number.

It is an amenable number.

2121044105 is a deficient number, since it is larger than the sum of its proper divisors (424989367).

2121044105 is a wasteful number, since it uses less digits than its factorization.

2121044105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130095.

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

The square root of 2121044105 is about 46054.7945929628. The cubic root of 2121044105 is about 1284.8425178070.

Adding to 2121044105 its reverse (5014401212), we get a palindrome (7135445317).

The spelling of 2121044105 in words is "two billion, one hundred twenty-one million, forty-four thousand, one hundred five".