30212 has 24 divisors (see below), whose sum is σ = 65856. Its totient is φ = 11808.

The previous prime is 30211. The next prime is 30223. The reversal of 30212 is 21203.

It is a self number, because there is not a number n which added to its sum of digits gives 30212.

It is not an unprimeable number, because it can be changed into a prime (30211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323 + ... + 405.

It is an arithmetic number, because the mean of its divisors is an integer number (2744).

2³⁰²¹² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32928).

30212 is an abundant number, since it is smaller than the sum of its proper divisors (35644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30212 is a wasteful number, since it uses less digits than its factorization.

30212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 30212 is about 173.8159946610. The cubic root of 30212 is about 31.1453459119.

Adding to 30212 its reverse (21203), we get a palindrome (51415).

Subtracting from 30212 its reverse (21203), we obtain a palindrome (9009).

It can be divided in two parts, 30 and 212, that added together give a palindrome (242).

The spelling of 30212 in words is "thirty thousand, two hundred twelve".