300021212 has 12 divisors (see below), whose sum is σ = 525654360. Its totient is φ = 149834256.

The previous prime is 300021187. The next prime is 300021233. The reversal of 300021212 is 212120003.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 300021193 and 300021202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40223 + ... + 47094.

It is an arithmetic number, because the mean of its divisors is an integer number (43804530).

Almost surely, 2^300021212 is an apocalyptic number.

It is an amenable number.

300021212 is a deficient number, since it is larger than the sum of its proper divisors (225633148).

300021212 is a wasteful number, since it uses less digits than its factorization.

300021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88180 (or 88178 counting only the distinct ones).

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

The square root of 300021212 is about 17321.1204025606. The cubic root of 300021212 is about 669.4487275011.

Adding to 300021212 its reverse (212120003), we get a palindrome (512141215).

The spelling of 300021212 in words is "three hundred million, twenty-one thousand, two hundred twelve".