212232312330 has 32 divisors (see below), whose sum is σ = 509607504000. Its totient is φ = 56567510592.

The previous prime is 212232312329. The next prime is 212232312337. The reversal of 212232312330 is 33213232212.

It is a self number, because there is not a number n which added to its sum of digits gives 212232312330.

It is not an unprimeable number, because it can be changed into a prime (212232312337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1673605 + ... + 1795944.

It is an arithmetic number, because the mean of its divisors is an integer number (15925234500).

Almost surely, 2^212232312330 is an apocalyptic number.

212232312330 is an abundant number, since it is smaller than the sum of its proper divisors (297375191670).

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

212232312330 is a wasteful number, since it uses less digits than its factorization.

212232312330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3471598.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 212232312330 its reverse (33213232212), we get a palindrome (245445544542).

The spelling of 212232312330 in words is "two hundred twelve billion, two hundred thirty-two million, three hundred twelve thousand, three hundred thirty".