4120000221 has 16 divisors (see below), whose sum is σ = 5516673536. Its totient is φ = 2735021376.

The previous prime is 4120000163. The next prime is 4120000229. The reversal of 4120000221 is 1220000214.

It is not a de Polignac number, because 4120000221 - 2¹³ = 4119992029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4120000197 and 4120000206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4120000229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 817716 + ... + 822738.

It is an arithmetic number, because the mean of its divisors is an integer number (344792096).

Almost surely, 2^4120000221 is an apocalyptic number.

It is an amenable number.

4120000221 is a deficient number, since it is larger than the sum of its proper divisors (1396673315).

4120000221 is a wasteful number, since it uses less digits than its factorization.

4120000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6132.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 4120000221 is about 64187.2278650512. The cubic root of 4120000221 is about 1603.1189449395.

Adding to 4120000221 its reverse (1220000214), we get a palindrome (5340000435).

The spelling of 4120000221 in words is "four billion, one hundred twenty million, two hundred twenty-one", and thus it is an aban number.