30212130 has 96 divisors (see below), whose sum is σ = 80637120. Its totient is φ = 7238400.

The previous prime is 30212129. The next prime is 30212131. The reversal of 30212130 is 3121203.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30212129) and next prime (30212131).

It is not an unprimeable number, because it can be changed into a prime (30212131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 299080 + ... + 299180.

It is an arithmetic number, because the mean of its divisors is an integer number (839970).

Almost surely, 2^30212130 is an apocalyptic number.

30212130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30212130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40318560).

30212130 is an abundant number, since it is smaller than the sum of its proper divisors (50424990).

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

30212130 is a wasteful number, since it uses less digits than its factorization.

30212130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 30212130 is about 5496.5561945640. The cubic root of 30212130 is about 311.4539058392.

Adding to 30212130 its reverse (3121203), we get a palindrome (33333333).

It can be divided in two parts, 3021 and 2130, that added together give a triangular number (5151 = T₁₀₁).

The spelling of 30212130 in words is "thirty million, two hundred twelve thousand, one hundred thirty".