212130022230 has 128 divisors (see below), whose sum is σ = 649340789760. Its totient is φ = 48273166080.

The previous prime is 212130022229. The next prime is 212130022243. The reversal of 212130022230 is 32220031212.

212130022230 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 181810 + ... + 676250.

It is an arithmetic number, because the mean of its divisors is an integer number (5072974920).

Almost surely, 2^212130022230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212130022230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324670394880).

212130022230 is an abundant number, since it is smaller than the sum of its proper divisors (437210767530).

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

212130022230 is a wasteful number, since it uses less digits than its factorization.

212130022230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494691 (or 494685 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 212130022230 its reverse (32220031212), we get a palindrome (244350053442).

The spelling of 212130022230 in words is "two hundred twelve billion, one hundred thirty million, twenty-two thousand, two hundred thirty".