2212108805 has 8 divisors (see below), whose sum is σ = 2671439352. Its totient is φ = 1758414528.

The previous prime is 2212108781. The next prime is 2212108823. The reversal of 2212108805 is 5088012122.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 556676836 + 1655431969 = 23594^2 + 40687^2 .

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 2212108805 - 2³⁰ = 1138366981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1408202 + ... + 1409771.

It is an arithmetic number, because the mean of its divisors is an integer number (333929919).

Almost surely, 2^2212108805 is an apocalyptic number.

It is an amenable number.

2212108805 is a deficient number, since it is larger than the sum of its proper divisors (459330547).

2212108805 is a wasteful number, since it uses less digits than its factorization.

2212108805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2818135.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 2212108805 is about 47033.0607658060. The cubic root of 2212108805 is about 1302.9732351518.

The spelling of 2212108805 in words is "two billion, two hundred twelve million, one hundred eight thousand, eight hundred five".