4120420099 has 2 divisors, whose sum is σ = 4120420100. Its totient is φ = 4120420098.

The previous prime is 4120420097. The next prime is 4120420127. The reversal of 4120420099 is 9900240214.

It is a happy number.

4120420099 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4120420099 - 2¹ = 4120420097 is a prime.

Together with 4120420097, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 4120420099.

It is not a weakly prime, because it can be changed into another prime (4120420097) 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 as a sum of consecutive naturals, namely, 2060210049 + 2060210050.

It is an arithmetic number, because the mean of its divisors is an integer number (2060210050).

Almost surely, 2^4120420099 is an apocalyptic number.

4120420099 is a deficient number, since it is larger than the sum of its proper divisors (1).

4120420099 is an equidigital number, since it uses as much as digits as its factorization.

4120420099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 4120420099 is about 64190.4985102936. The cubic root of 4120420099 is about 1603.1734021786.

The spelling of 4120420099 in words is "four billion, one hundred twenty million, four hundred twenty thousand, ninety-nine".