4105120215 has 32 divisors (see below), whose sum is σ = 7709391360. Its totient is φ = 1825905024.

The previous prime is 4105120211. The next prime is 4105120241. The reversal of 4105120215 is 5120215014.

It is not a de Polignac number, because 4105120215 - 2² = 4105120211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 4105120191 and 4105120200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4105120211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 524445 + ... + 532214.

It is an arithmetic number, because the mean of its divisors is an integer number (240918480).

Almost surely, 2^4105120215 is an apocalyptic number.

4105120215 is a deficient number, since it is larger than the sum of its proper divisors (3604271145).

4105120215 is a wasteful number, since it uses less digits than its factorization.

4105120215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056711.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 4105120215 is about 64071.2120612682. The cubic root of 4105120215 is about 1601.1866476943.

Adding to 4105120215 its reverse (5120215014), we get a palindrome (9225335229).

The spelling of 4105120215 in words is "four billion, one hundred five million, one hundred twenty thousand, two hundred fifteen".