30067221 has 8 divisors (see below), whose sum is σ = 40116384. Its totient is φ = 20031440.

The previous prime is 30067217. The next prime is 30067249. The reversal of 30067221 is 12276003.

It is a happy number.

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 30067221 - 2² = 30067217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30067211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4591 + ... + 9011.

It is an arithmetic number, because the mean of its divisors is an integer number (5014548).

Almost surely, 2^30067221 is an apocalyptic number.

It is an amenable number.

30067221 is a deficient number, since it is larger than the sum of its proper divisors (10049163).

30067221 is a wasteful number, since it uses less digits than its factorization.

30067221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6691.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 30067221 is about 5483.3585511072. The cubic root of 30067221 is about 310.9551566668.

The spelling of 30067221 in words is "thirty million, sixty-seven thousand, two hundred twenty-one".