2215105305 has 16 divisors (see below), whose sum is σ = 4050478464. Its totient is φ = 1012619520.

The previous prime is 2215105301. The next prime is 2215105313. The reversal of 2215105305 is 5035015122.

It is a happy number.

It is not a de Polignac number, because 2215105305 - 2² = 2215105301 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2215105301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10548016 + ... + 10548225.

It is an arithmetic number, because the mean of its divisors is an integer number (253154904).

Almost surely, 2^2215105305 is an apocalyptic number.

It is an amenable number.

2215105305 is a deficient number, since it is larger than the sum of its proper divisors (1835373159).

2215105305 is a wasteful number, since it uses less digits than its factorization.

2215105305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21096256.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 2215105305 is about 47064.9052373422. The cubic root of 2215105305 is about 1303.5613011157.

The spelling of 2215105305 in words is "two billion, two hundred fifteen million, one hundred five thousand, three hundred five".