2205581011 has 4 divisors (see below), whose sum is σ = 2242963800. Its totient is φ = 2168198224.

The previous prime is 2205580997. The next prime is 2205581017. The reversal of 2205581011 is 1101855022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2205581011 - 2²¹ = 2203483859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2205581017) 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 3 ways as a sum of consecutive naturals, for example, 18691306 + ... + 18691423.

It is an arithmetic number, because the mean of its divisors is an integer number (560740950).

Almost surely, 2^2205581011 is an apocalyptic number.

2205581011 is a deficient number, since it is larger than the sum of its proper divisors (37382789).

2205581011 is an equidigital number, since it uses as much as digits as its factorization.

2205581011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37382788.

The product of its (nonzero) digits is 800, while the sum is 25.

The square root of 2205581011 is about 46963.6136918785. The cubic root of 2205581011 is about 1301.6903083463.

The spelling of 2205581011 in words is "two billion, two hundred five million, five hundred eighty-one thousand, eleven".