30841221 has 8 divisors (see below), whose sum is σ = 41279040. Its totient is φ = 20482112.

The previous prime is 30841211. The next prime is 30841231. The reversal of 30841221 is 12214803.

It is an interprime number because it is at equal distance from previous prime (30841211) and next prime (30841231).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30841221 - 2⁵ = 30841189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30841201) 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 7 ways as a sum of consecutive naturals, for example, 18756 + ... + 20333.

It is an arithmetic number, because the mean of its divisors is an integer number (5159880).

Almost surely, 2^30841221 is an apocalyptic number.

It is an amenable number.

30841221 is a deficient number, since it is larger than the sum of its proper divisors (10437819).

30841221 is a wasteful number, since it uses less digits than its factorization.

30841221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39355.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 30841221 is about 5553.4872827801. The cubic root of 30841221 is about 313.6008186943.

The spelling of 30841221 in words is "thirty million, eight hundred forty-one thousand, two hundred twenty-one".