221104906 has 8 divisors (see below), whose sum is σ = 361808064. Its totient is φ = 100502220.

The previous prime is 221104901. The next prime is 221104909. The reversal of 221104906 is 609401122.

221104906 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

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 3 ways as a sum of consecutive naturals, for example, 5025090 + ... + 5025133.

It is an arithmetic number, because the mean of its divisors is an integer number (45226008).

Almost surely, 2^221104906 is an apocalyptic number.

221104906 is a deficient number, since it is larger than the sum of its proper divisors (140703158).

221104906 is a wasteful number, since it uses less digits than its factorization.

221104906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10050236.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 221104906 is about 14869.5966993056. The cubic root of 221104906 is about 604.6900089870.

The spelling of 221104906 in words is "two hundred twenty-one million, one hundred four thousand, nine hundred six".