2256884221 has 8 divisors (see below), whose sum is σ = 2263621464. Its totient is φ = 2250158400.

The previous prime is 2256884219. The next prime is 2256884243. The reversal of 2256884221 is 1224886522.

2256884221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 384591321 + 1872292900 = 19611^2 + 43270^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2256884221 - 2¹ = 2256884219 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 (2256887221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 528531 + ... + 532783.

It is an arithmetic number, because the mean of its divisors is an integer number (282952683).

Almost surely, 2^2256884221 is an apocalyptic number.

It is an amenable number.

2256884221 is a deficient number, since it is larger than the sum of its proper divisors (6737243).

2256884221 is an equidigital number, since it uses as much as digits as its factorization.

2256884221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5711.

The product of its digits is 122880, while the sum is 40.

The square root of 2256884221 is about 47506.6755414436. The cubic root of 2256884221 is about 1311.7057632999.

The spelling of 2256884221 in words is "two billion, two hundred fifty-six million, eight hundred eighty-four thousand, two hundred twenty-one".