9304222021 has 4 divisors (see below), whose sum is σ = 9304611372. Its totient is φ = 9303832672.

The previous prime is 9304222019. The next prime is 9304222033. The reversal of 9304222021 is 1202224039.

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 5028369921 + 4275852100 = 70911^2 + 65390^2 .

It is a cyclic number.

It is not a de Polignac number, because 9304222021 - 2¹ = 9304222019 is a prime.

It is a super-2 number, since 2×9304222021² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9304222001) 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, 156310 + ... + 207463.

It is an arithmetic number, because the mean of its divisors is an integer number (2326152843).

Almost surely, 2^9304222021 is an apocalyptic number.

It is an amenable number.

9304222021 is a deficient number, since it is larger than the sum of its proper divisors (389351).

9304222021 is a wasteful number, since it uses less digits than its factorization.

9304222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389350.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 9304222021 is about 96458.3952852213. The cubic root of 9304222021 is about 2103.2619013071.

The spelling of 9304222021 in words is "nine billion, three hundred four million, two hundred twenty-two thousand, twenty-one".