212242030 has 144 divisors (see below), whose sum is σ = 527224464. Its totient is φ = 60802560.

The previous prime is 212242021. The next prime is 212242033. The reversal of 212242030 is 30242212.

212242030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212241995 and 212242013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212242033) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 910794 + ... + 911026.

It is an arithmetic number, because the mean of its divisors is an integer number (3661281).

Almost surely, 2^212242030 is an apocalyptic number.

212242030 is an abundant number, since it is smaller than the sum of its proper divisors (314982434).

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

212242030 is a wasteful number, since it uses less digits than its factorization.

212242030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 212242030 is about 14568.5287520738. The cubic root of 212242030 is about 596.5000214298.

Adding to 212242030 its reverse (30242212), we get a palindrome (242484242).

It can be divided in two parts, 212 and 242030, that added together give a palindrome (242242).

The spelling of 212242030 in words is "two hundred twelve million, two hundred forty-two thousand, thirty".