221450301 has 32 divisors (see below), whose sum is σ = 353408000. Its totient is φ = 136597104.

The previous prime is 221450297. The next prime is 221450311. The reversal of 221450301 is 103054122.

It is not a de Polignac number, because 221450301 - 2² = 221450297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221450311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17040 + ... + 27078.

It is an arithmetic number, because the mean of its divisors is an integer number (11044000).

Almost surely, 2^221450301 is an apocalyptic number.

It is an amenable number.

221450301 is a deficient number, since it is larger than the sum of its proper divisors (131957699).

221450301 is a wasteful number, since it uses less digits than its factorization.

221450301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10110 (or 10104 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 221450301 is about 14881.2063019098. The cubic root of 221450301 is about 605.0047136668.

The spelling of 221450301 in words is "two hundred twenty-one million, four hundred fifty thousand, three hundred one".