30221012 has 12 divisors (see below), whose sum is σ = 52925376. Its totient is φ = 15099480.

The previous prime is 30221003. The next prime is 30221033. The reversal of 30221012 is 21012203.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30220984 and 30221002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8687 + ... + 11657.

It is an arithmetic number, because the mean of its divisors is an integer number (4410448).

Almost surely, 2^30221012 is an apocalyptic number.

It is an amenable number.

30221012 is a deficient number, since it is larger than the sum of its proper divisors (22704364).

30221012 is a wasteful number, since it uses less digits than its factorization.

30221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5518 (or 5516 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 30221012 is about 5497.3640956371. The cubic root of 30221012 is about 311.4844240730.

Adding to 30221012 its reverse (21012203), we get a palindrome (51233215).

The spelling of 30221012 in words is "thirty million, two hundred twenty-one thousand, twelve".