2818260221 has 8 divisors (see below), whose sum is σ = 3410331840. Its totient is φ = 2273554368.

The previous prime is 2818260197. The next prime is 2818260227. The reversal of 2818260221 is 1220628182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2818260221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2818260227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11841311 + ... + 11841548.

It is an arithmetic number, because the mean of its divisors is an integer number (426291480).

Almost surely, 2^2818260221 is an apocalyptic number.

It is an amenable number.

2818260221 is a deficient number, since it is larger than the sum of its proper divisors (592071619).

2818260221 is a wasteful number, since it uses less digits than its factorization.

2818260221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23682883.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 2818260221 is about 53087.2886951293. The cubic root of 2818260221 is about 1412.5170440526.

The spelling of 2818260221 in words is "two billion, eight hundred eighteen million, two hundred sixty thousand, two hundred twenty-one".