221430301 has 8 divisors (see below), whose sum is σ = 226750464. Its totient is φ = 216135600.

The previous prime is 221430281. The next prime is 221430329. The reversal of 221430301 is 103034122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221430301 - 2⁷ = 221430173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221433301) 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 7 ways as a sum of consecutive naturals, for example, 11851 + ... + 24151.

It is an arithmetic number, because the mean of its divisors is an integer number (28343808).

Almost surely, 2^221430301 is an apocalyptic number.

It is an amenable number.

221430301 is a deficient number, since it is larger than the sum of its proper divisors (5320163).

221430301 is a wasteful number, since it uses less digits than its factorization.

221430301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12731.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 221430301 is about 14880.5342982031. The cubic root of 221430301 is about 604.9864997101.

Adding to 221430301 its reverse (103034122), we get a palindrome (324464423).

The spelling of 221430301 in words is "two hundred twenty-one million, four hundred thirty thousand, three hundred one".