221104907 has 8 divisors (see below), whose sum is σ = 236300976. Its totient is φ = 206152192.

The previous prime is 221104901. The next prime is 221104909. The reversal of 221104907 is 709401122.

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-221104907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221104901) 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, 58958 + ... + 62595.

It is an arithmetic number, because the mean of its divisors is an integer number (29537622).

Almost surely, 2^221104907 is an apocalyptic number.

221104907 is a deficient number, since it is larger than the sum of its proper divisors (15196069).

221104907 is a wasteful number, since it uses less digits than its factorization.

221104907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121677.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 221104907 is about 14869.5967329313. The cubic root of 221104907 is about 604.6900098986.

The spelling of 221104907 in words is "two hundred twenty-one million, one hundred four thousand, nine hundred seven".