30020212 has 6 divisors (see below), whose sum is σ = 52535378. Its totient is φ = 15010104.

The previous prime is 30020189. The next prime is 30020213. The reversal of 30020212 is 21202003.

It can be written as a sum of positive squares in only one way, i.e., 28665316 + 1354896 = 5354^2 + 1164^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30020213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3752523 + ... + 3752530.

Almost surely, 2^30020212 is an apocalyptic number.

It is an amenable number.

30020212 is a deficient number, since it is larger than the sum of its proper divisors (22515166).

30020212 is a wasteful number, since it uses less digits than its factorization.

30020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7505057 (or 7505055 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 30020212 is about 5479.0703591029. The cubic root of 30020212 is about 310.7930164670.

Adding to 30020212 its reverse (21202003), we get a palindrome (51222215).

The spelling of 30020212 in words is "thirty million, twenty thousand, two hundred twelve".