30221007 has 4 divisors (see below), whose sum is σ = 40294680. Its totient is φ = 20147336.

The previous prime is 30221003. The next prime is 30221033. The reversal of 30221007 is 70012203.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30221007 - 2² = 30221003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30221003) 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, 5036832 + ... + 5036837.

It is an arithmetic number, because the mean of its divisors is an integer number (10073670).

Almost surely, 2^30221007 is an apocalyptic number.

30221007 is a deficient number, since it is larger than the sum of its proper divisors (10073673).

30221007 is a wasteful number, since it uses less digits than its factorization.

30221007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10073672.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 30221007 is about 5497.3636408737. The cubic root of 30221007 is about 311.4844068949.

The spelling of 30221007 in words is "thirty million, two hundred twenty-one thousand, seven".