221250896 has 20 divisors (see below), whose sum is σ = 451236000. Its totient is φ = 104802912.

The previous prime is 221250881. The next prime is 221250907. The reversal of 221250896 is 698052122.

It is a happy number.

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, 363596 + ... + 364203.

It is an arithmetic number, because the mean of its divisors is an integer number (22561800).

Almost surely, 2^221250896 is an apocalyptic number.

It is an amenable number.

221250896 is an abundant number, since it is smaller than the sum of its proper divisors (229985104).

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

221250896 is a wasteful number, since it uses less digits than its factorization.

221250896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727826 (or 727820 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 221250896 is about 14874.5048993235. The cubic root of 221250896 is about 604.8230669001.

The spelling of 221250896 in words is "two hundred twenty-one million, two hundred fifty thousand, eight hundred ninety-six".