221140301 has 4 divisors (see below), whose sum is σ = 234148572. Its totient is φ = 208132032.

The previous prime is 221140291. The next prime is 221140313. The reversal of 221140301 is 103041122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 117202276 + 103938025 = 10826^2 + 10195^2 .

It is a cyclic number.

It is not a de Polignac number, because 221140301 - 2⁶ = 221140237 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 (221140321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6504110 + ... + 6504143.

It is an arithmetic number, because the mean of its divisors is an integer number (58537143).

Almost surely, 2^221140301 is an apocalyptic number.

It is an amenable number.

221140301 is a deficient number, since it is larger than the sum of its proper divisors (13008271).

221140301 is a wasteful number, since it uses less digits than its factorization.

221140301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13008270.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 221140301 is about 14870.7868319064. The cubic root of 221140301 is about 604.7222740044.

Adding to 221140301 its reverse (103041122), we get a palindrome (324181423).

The spelling of 221140301 in words is "two hundred twenty-one million, one hundred forty thousand, three hundred one".