221358950 has 24 divisors (see below), whose sum is σ = 412220640. Its totient is φ = 88437600.

The previous prime is 221358937. The next prime is 221358961. The reversal of 221358950 is 59853122.

It is a self number, because there is not a number n which added to its sum of digits gives 221358950.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49820 + ... + 54080.

It is an arithmetic number, because the mean of its divisors is an integer number (17175860).

Almost surely, 2^221358950 is an apocalyptic number.

221358950 is a deficient number, since it is larger than the sum of its proper divisors (190861690).

221358950 is a wasteful number, since it uses less digits than its factorization.

221358950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5312 (or 5307 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 221358950 is about 14878.1366440828. The cubic root of 221358950 is about 604.9215115719.

The spelling of 221358950 in words is "two hundred twenty-one million, three hundred fifty-eight thousand, nine hundred fifty".