221104902 has 8 divisors (see below), whose sum is σ = 442209816. Its totient is φ = 73701632.

The previous prime is 221104901. The next prime is 221104909. The reversal of 221104902 is 209401122.

221104902 is digitally balanced in base 2, because in such base 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.

221104902 is an admirable number.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 18425403 + ... + 18425414.

It is an arithmetic number, because the mean of its divisors is an integer number (55276227).

Almost surely, 2^221104902 is an apocalyptic number.

221104902 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221104902 is a wasteful number, since it uses less digits than its factorization.

221104902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36850822.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 221104902 is about 14869.5965648030. The cubic root of 221104902 is about 604.6900053405.

The spelling of 221104902 in words is "two hundred twenty-one million, one hundred four thousand, nine hundred two".