30210212 has 12 divisors (see below), whose sum is σ = 53865756. Its totient is φ = 14820000.

The previous prime is 30210203. The next prime is 30210217. The reversal of 30210212 is 21201203.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15952036 + 14258176 = 3994^2 + 3776^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30210193 and 30210202.

It is not an unprimeable number, because it can be changed into a prime (30210217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71039 + ... + 71462.

It is an arithmetic number, because the mean of its divisors is an integer number (4488813).

Almost surely, 2^30210212 is an apocalyptic number.

It is an amenable number.

30210212 is a deficient number, since it is larger than the sum of its proper divisors (23655544).

30210212 is a wasteful number, since it uses less digits than its factorization.

30210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142558 (or 142556 counting only the distinct ones).

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

The square root of 30210212 is about 5496.3817189129. The cubic root of 30210212 is about 311.4473148746.

Adding to 30210212 its reverse (21201203), we get a palindrome (51411415).

Subtracting from 30210212 its reverse (21201203), we obtain a palindrome (9009009).

The spelling of 30210212 in words is "thirty million, two hundred ten thousand, two hundred twelve".