212441021424 has 120 divisors (see below), whose sum is σ = 630490404960. Its totient is φ = 66544656384.

The previous prime is 212441021417. The next prime is 212441021447. The reversal of 212441021424 is 424120144212.

212441021424 is a `hidden beast` number, since 2 + 1 + 2 + 441 + 0 + 214 + 2 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1516792 + ... + 1650920.

It is an arithmetic number, because the mean of its divisors is an integer number (5254086708).

Almost surely, 2^212441021424 is an apocalyptic number.

212441021424 is a gapful number since it is divisible by the number (24) 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 212441021424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315245202480).

212441021424 is an abundant number, since it is smaller than the sum of its proper divisors (418049383536).

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

212441021424 is a wasteful number, since it uses less digits than its factorization.

212441021424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134807 (or 134798 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 212441021424 its reverse (424120144212), we get a palindrome (636561165636).

The spelling of 212441021424 in words is "two hundred twelve billion, four hundred forty-one million, twenty-one thousand, four hundred twenty-four".