2108575221 has 8 divisors (see below), whose sum is σ = 2811816384. Its totient is φ = 1405525440.

The previous prime is 2108575193. The next prime is 2108575237. The reversal of 2108575221 is 1225758012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2108575221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2108575321) 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, 19785 + ... + 67886.

It is an arithmetic number, because the mean of its divisors is an integer number (351477048).

Almost surely, 2^2108575221 is an apocalyptic number.

It is an amenable number.

2108575221 is a deficient number, since it is larger than the sum of its proper divisors (703241163).

2108575221 is an equidigital number, since it uses as much as digits as its factorization.

2108575221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95691.

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 2108575221 is about 45919.2249607939. The cubic root of 2108575221 is about 1282.3198532539.

The spelling of 2108575221 in words is "two billion, one hundred eight million, five hundred seventy-five thousand, two hundred twenty-one".