212124122 has 8 divisors (see below), whose sum is σ = 363641376. Its totient is φ = 90910332.

The previous prime is 212124109. The next prime is 212124127. The reversal of 212124122 is 221421212.

212124122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 212124122.

It is not an unprimeable number, because it can be changed into a prime (212124127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7575848 + ... + 7575875.

It is an arithmetic number, because the mean of its divisors is an integer number (45455172).

Almost surely, 2^212124122 is an apocalyptic number.

212124122 is a deficient number, since it is larger than the sum of its proper divisors (151517254).

212124122 is a wasteful number, since it uses less digits than its factorization.

212124122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15151732.

The product of its digits is 128, while the sum is 17.

The square root of 212124122 is about 14564.4815218394. The cubic root of 212124122 is about 596.3895419731.

Adding to 212124122 its reverse (221421212), we get a palindrome (433545334).

The spelling of 212124122 in words is "two hundred twelve million, one hundred twenty-four thousand, one hundred twenty-two".