30350221 has 4 divisors (see below), whose sum is σ = 33109344. Its totient is φ = 27591100.

The previous prime is 30350207. The next prime is 30350227. The reversal of 30350221 is 12205303.

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 30350221 - 2⁷ = 30350093 is a prime.

It is a super-2 number, since 2×30350221² = 1842271829497682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30350195 and 30350204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30350227) 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, 1379545 + ... + 1379566.

It is an arithmetic number, because the mean of its divisors is an integer number (8277336).

Almost surely, 2^30350221 is an apocalyptic number.

It is an amenable number.

30350221 is a deficient number, since it is larger than the sum of its proper divisors (2759123).

30350221 is a wasteful number, since it uses less digits than its factorization.

30350221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2759122.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 30350221 is about 5509.1034660823. The cubic root of 30350221 is about 311.9277069245.

Adding to 30350221 its reverse (12205303), we get a palindrome (42555524).

The spelling of 30350221 in words is "thirty million, three hundred fifty thousand, two hundred twenty-one".