212112530 has 16 divisors (see below), whose sum is σ = 436345920. Its totient is φ = 72724272.

The previous prime is 212112521. The next prime is 212112541. The reversal of 212112530 is 35211212.

It is a happy number.

212112530 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 = 212112499 and 212112508.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1515020 + ... + 1515159.

It is an arithmetic number, because the mean of its divisors is an integer number (27271620).

Almost surely, 2^212112530 is an apocalyptic number.

212112530 is an abundant number, since it is smaller than the sum of its proper divisors (224233390).

212112530 is a wasteful number, since it uses less digits than its factorization.

212112530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3030193.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 212112530 is about 14564.0835619685. The cubic root of 212112530 is about 596.3786780923.

Adding to 212112530 its reverse (35211212), we get a palindrome (247323742).

The spelling of 212112530 in words is "two hundred twelve million, one hundred twelve thousand, five hundred thirty".