2205512117 has 4 divisors (see below), whose sum is σ = 2226924960. Its totient is φ = 2184099276.

The previous prime is 2205512069. The next prime is 2205512149. The reversal of 2205512117 is 7112155022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2205512117 - 2¹⁰ = 2205511093 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 (2205514117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10706267 + ... + 10706472.

It is an arithmetic number, because the mean of its divisors is an integer number (556731240).

Almost surely, 2^2205512117 is an apocalyptic number.

It is an amenable number.

2205512117 is a deficient number, since it is larger than the sum of its proper divisors (21412843).

2205512117 is a wasteful number, since it uses less digits than its factorization.

2205512117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21412842.

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 2205512117 is about 46962.8802034117. The cubic root of 2205512117 is about 1301.6767549129.

Adding to 2205512117 its reverse (7112155022), we get a palindrome (9317667139).

The spelling of 2205512117 in words is "two billion, two hundred five million, five hundred twelve thousand, one hundred seventeen".