212224043430 has 96 divisors (see below), whose sum is σ = 631346025024. Its totient is φ = 48451627008.

The previous prime is 212224043407. The next prime is 212224043431. The reversal of 212224043430 is 34340422212.

212224043430 is a `hidden beast` number, since 2 + 1 + 2 + 224 + 0 + 4 + 3 + 430 = 666.

212224043430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212224043394 and 212224043403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212224043431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 343374 + ... + 736446.

It is an arithmetic number, because the mean of its divisors is an integer number (6576521094).

Almost surely, 2^212224043430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212224043430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315673012512).

212224043430 is an abundant number, since it is smaller than the sum of its proper divisors (419121981594).

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

212224043430 is a wasteful number, since it uses less digits than its factorization.

212224043430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393950 (or 393947 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 212224043430 its reverse (34340422212), we get a palindrome (246564465642).

The spelling of 212224043430 in words is "two hundred twelve billion, two hundred twenty-four million, forty-three thousand, four hundred thirty".