212133213320 has 128 divisors (see below), whose sum is σ = 547468104960. Its totient is φ = 72467619840.

The previous prime is 212133213289. The next prime is 212133213323. The reversal of 212133213320 is 23312331212.

It is not an unprimeable number, because it can be changed into a prime (212133213323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119376272 + ... + 119378048.

It is an arithmetic number, because the mean of its divisors is an integer number (4277094570).

Almost surely, 2^212133213320 is an apocalyptic number.

212133213320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212133213320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273734052480).

212133213320 is an abundant number, since it is smaller than the sum of its proper divisors (335334891640).

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

212133213320 is a wasteful number, since it uses less digits than its factorization.

212133213320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3103 (or 3099 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 212133213320 its reverse (23312331212), we get a palindrome (235445544532).

The spelling of 212133213320 in words is "two hundred twelve billion, one hundred thirty-three million, two hundred thirteen thousand, three hundred twenty".