221300248 has 16 divisors (see below), whose sum is σ = 446856480. Its totient is φ = 102138528.

The previous prime is 221300243. The next prime is 221300249. The reversal of 221300248 is 842003122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221300243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1063840 + ... + 1064047.

It is an arithmetic number, because the mean of its divisors is an integer number (27928530).

Almost surely, 2^221300248 is an apocalyptic number.

It is an amenable number.

221300248 is an abundant number, since it is smaller than the sum of its proper divisors (225556232).

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

221300248 is a wasteful number, since it uses less digits than its factorization.

221300248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2127906 (or 2127902 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 221300248 is about 14876.1637527959. The cubic root of 221300248 is about 604.8680339631.

The spelling of 221300248 in words is "two hundred twenty-one million, three hundred thousand, two hundred forty-eight".