212124442430 has 8 divisors (see below), whose sum is σ = 381823996392. Its totient is φ = 84849776968.

The previous prime is 212124442427. The next prime is 212124442433. The reversal of 212124442430 is 34244421212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (212124442427) and next prime (212124442433).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 212124442393 and 212124442402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212124442433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10606222112 + ... + 10606222131.

It is an arithmetic number, because the mean of its divisors is an integer number (47727999549).

Almost surely, 2^212124442430 is an apocalyptic number.

212124442430 is a deficient number, since it is larger than the sum of its proper divisors (169699553962).

212124442430 is a wasteful number, since it uses less digits than its factorization.

212124442430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21212444250.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 212124442430 its reverse (34244421212), we get a palindrome (246368863642).

The spelling of 212124442430 in words is "two hundred twelve billion, one hundred twenty-four million, four hundred forty-two thousand, four hundred thirty".