212133213312 has 32 divisors (see below), whose sum is σ = 563478848880. Its totient is φ = 70711070976.

The previous prime is 212133213289. The next prime is 212133213323. The reversal of 212133213312 is 213312331212.

212133213312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276214738 + ... + 276215505.

Almost surely, 2^212133213312 is an apocalyptic number.

It is an amenable number.

212133213312 is an abundant number, since it is smaller than the sum of its proper divisors (351345635568).

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

212133213312 is an equidigital number, since it uses as much as digits as its factorization.

212133213312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552430260 (or 552430248 counting only the distinct ones).

The product of its digits is 1296, while the sum is 24.

Adding to 212133213312 its reverse (213312331212), we get a palindrome (425445544524).

The spelling of 212133213312 in words is "two hundred twelve billion, one hundred thirty-three million, two hundred thirteen thousand, three hundred twelve".