2221240255 has 16 divisors (see below), whose sum is σ = 2884148064. Its totient is φ = 1632516480.

The previous prime is 2221240253. The next prime is 2221240261. The reversal of 2221240255 is 5520421222.

It is not a de Polignac number, because 2221240255 - 2¹ = 2221240253 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 (2221240253) 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, 67264 + ... + 94693.

It is an arithmetic number, because the mean of its divisors is an integer number (180259254).

Almost surely, 2^2221240255 is an apocalyptic number.

2221240255 is a deficient number, since it is larger than the sum of its proper divisors (662907809).

2221240255 is a wasteful number, since it uses less digits than its factorization.

2221240255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162186.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 2221240255 is about 47130.0355930271. The cubic root of 2221240255 is about 1304.7636384854.

Adding to 2221240255 its reverse (5520421222), we get a palindrome (7741661477).

The spelling of 2221240255 in words is "two billion, two hundred twenty-one million, two hundred forty thousand, two hundred fifty-five".