4105512121 has 8 divisors (see below), whose sum is σ = 4536013824. Its totient is φ = 3696010560.

The previous prime is 4105512113. The next prime is 4105512137. The reversal of 4105512121 is 1212155014.

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 4105512121 - 2³ = 4105512113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4105512092 and 4105512101.

It is not an unprimeable number, because it can be changed into a prime (4105512101) 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, 5249625 + ... + 5250406.

It is an arithmetic number, because the mean of its divisors is an integer number (567001728).

Almost surely, 2^4105512121 is an apocalyptic number.

It is an amenable number.

4105512121 is a deficient number, since it is larger than the sum of its proper divisors (430501703).

4105512121 is a wasteful number, since it uses less digits than its factorization.

4105512121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10500071.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 4105512121 is about 64074.2703508983. The cubic root of 4105512121 is about 1601.2375998916.

Adding to 4105512121 its reverse (1212155014), we get a palindrome (5317667135).

The spelling of 4105512121 in words is "four billion, one hundred five million, five hundred twelve thousand, one hundred twenty-one".