2212255505 has 8 divisors (see below), whose sum is σ = 2659310952. Its totient is φ = 1766734848.

The previous prime is 2212255501. The next prime is 2212255531. The reversal of 2212255505 is 5055522122.

It can be written as a sum of positive squares in 4 ways, for example, as 1221013249 + 991242256 = 34943^2 + 31484^2 .

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 2212255505 - 2² = 2212255501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2212255501) 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, 380522 + ... + 386291.

It is an arithmetic number, because the mean of its divisors is an integer number (332413869).

Almost surely, 2^2212255505 is an apocalyptic number.

It is an amenable number.

2212255505 is a deficient number, since it is larger than the sum of its proper divisors (447055447).

2212255505 is an equidigital number, since it uses as much as digits as its factorization.

2212255505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767395.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 2212255505 is about 47034.6202812354. The cubic root of 2212255505 is about 1303.0020375248.

Adding to 2212255505 its reverse (5055522122), we get a palindrome (7267777627).

The spelling of 2212255505 in words is "two billion, two hundred twelve million, two hundred fifty-five thousand, five hundred five".