30322221 has 4 divisors (see below), whose sum is σ = 40429632. Its totient is φ = 20214812.

The previous prime is 30322213. The next prime is 30322223. The reversal of 30322221 is 12222303.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30322221 - 2³ = 30322213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30322221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30322223) 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, 5053701 + ... + 5053706.

It is an arithmetic number, because the mean of its divisors is an integer number (10107408).

Almost surely, 2^30322221 is an apocalyptic number.

It is an amenable number.

30322221 is a deficient number, since it is larger than the sum of its proper divisors (10107411).

30322221 is a wasteful number, since it uses less digits than its factorization.

30322221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10107410.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 30322221 is about 5506.5616313631. The cubic root of 30322221 is about 311.8317530592.

Adding to 30322221 its reverse (12222303), we get a palindrome (42544524).

It can be divided in two parts, 3032 and 2221, that added together give a triangular number (5253 = T₁₀₂).

The spelling of 30322221 in words is "thirty million, three hundred twenty-two thousand, two hundred twenty-one".