221985848 has 32 divisors (see below), whose sum is σ = 483753600. Its totient is φ = 93522912.

The previous prime is 221985817. The next prime is 221985851. The reversal of 221985848 is 848589122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30290 + ... + 36897.

It is an arithmetic number, because the mean of its divisors is an integer number (15117300).

Almost surely, 2^221985848 is an apocalyptic number.

221985848 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

221985848 is an abundant number, since it is smaller than the sum of its proper divisors (261767752).

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

221985848 is a wasteful number, since it uses less digits than its factorization.

221985848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67259 (or 67255 counting only the distinct ones).

The product of its digits is 368640, while the sum is 47.

The square root of 221985848 is about 14899.1895081578. The cubic root of 221985848 is about 605.4920278533.

The spelling of 221985848 in words is "two hundred twenty-one million, nine hundred eighty-five thousand, eight hundred forty-eight".