4120218899 has 4 divisors (see below), whose sum is σ = 4120405536. Its totient is φ = 4120032264.

The previous prime is 4120218881. The next prime is 4120218901. The reversal of 4120218899 is 9988120214.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9988120214 = 2 ⋅4994060107.

It is a cyclic number.

It is not a de Polignac number, because 4120218899 - 2²⁰ = 4119170323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4120218829) 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 3 ways as a sum of consecutive naturals, for example, 54944 + ... + 106109.

It is an arithmetic number, because the mean of its divisors is an integer number (1030101384).

Almost surely, 2^4120218899 is an apocalyptic number.

4120218899 is a deficient number, since it is larger than the sum of its proper divisors (186637).

4120218899 is a wasteful number, since it uses less digits than its factorization.

4120218899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186636.

The product of its (nonzero) digits is 82944, while the sum is 44.

The square root of 4120218899 is about 64188.9312810238. The cubic root of 4120218899 is about 1603.1473074495.

The spelling of 4120218899 in words is "four billion, one hundred twenty million, two hundred eighteen thousand, eight hundred ninety-nine".