212012330 has 32 divisors (see below), whose sum is σ = 395884800. Its totient is φ = 81652032.

The previous prime is 212012299. The next prime is 212012351. The reversal of 212012330 is 33210212.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133481 + ... + 135059.

It is an arithmetic number, because the mean of its divisors is an integer number (12371400).

Almost surely, 2^212012330 is an apocalyptic number.

212012330 is a deficient number, since it is larger than the sum of its proper divisors (183872470).

212012330 is a wasteful number, since it uses less digits than its factorization.

212012330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2078.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 212012330 is about 14560.6431863431. The cubic root of 212012330 is about 596.2847553750.

Adding to 212012330 its reverse (33210212), we get a palindrome (245222542).

The spelling of 212012330 in words is "two hundred twelve million, twelve thousand, three hundred thirty".