221068850 has 24 divisors (see below), whose sum is σ = 435377268. Its totient is φ = 83225600.

The previous prime is 221068831. The next prime is 221068877. The reversal of 221068850 is 58860122.

It can be written as a sum of positive squares in 6 ways, for example, as 63792169 + 157276681 = 7987^2 + 12541^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

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, 129191 + ... + 130890.

Almost surely, 2^221068850 is an apocalyptic number.

221068850 is a deficient number, since it is larger than the sum of its proper divisors (214308418).

221068850 is a wasteful number, since it uses less digits than its factorization.

221068850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260110 (or 260105 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 221068850 is about 14868.3842430844. The cubic root of 221068850 is about 604.6571378813.

The spelling of 221068850 in words is "two hundred twenty-one million, sixty-eight thousand, eight hundred fifty".