302221229 has 4 divisors (see below), whose sum is σ = 302373084. Its totient is φ = 302069376.

The previous prime is 302221193. The next prime is 302221259. The reversal of 302221229 is 922122203.

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 279658729 + 22562500 = 16723^2 + 4750^2 .

It is a cyclic number.

It is not a de Polignac number, because 302221229 - 2²⁰ = 301172653 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 (302221259) 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 3 ways as a sum of consecutive naturals, for example, 72902 + ... + 76935.

It is an arithmetic number, because the mean of its divisors is an integer number (75593271).

Almost surely, 2^302221229 is an apocalyptic number.

It is an amenable number.

302221229 is a deficient number, since it is larger than the sum of its proper divisors (151855).

302221229 is a wasteful number, since it uses less digits than its factorization.

302221229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151854.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 302221229 is about 17384.5111809334. The cubic root of 302221229 is about 671.0810712255.

The spelling of 302221229 in words is "three hundred two million, two hundred twenty-one thousand, two hundred twenty-nine".