221334008 has 16 divisors (see below), whose sum is σ = 474287280. Its totient is φ = 94857408.

The previous prime is 221333993. The next prime is 221334013. The reversal of 221334008 is 800433122.

221334008 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1976141 + ... + 1976252.

It is an arithmetic number, because the mean of its divisors is an integer number (29642955).

Almost surely, 2^221334008 is an apocalyptic number.

221334008 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

221334008 is an abundant number, since it is smaller than the sum of its proper divisors (252953272).

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

221334008 is a wasteful number, since it uses less digits than its factorization.

221334008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3952406 (or 3952402 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 221334008 is about 14877.2984106658. The cubic root of 221334008 is about 604.8987905283.

The spelling of 221334008 in words is "two hundred twenty-one million, three hundred thirty-four thousand, eight".