212123102330 has 8 divisors (see below), whose sum is σ = 381821584212. Its totient is φ = 84849240928.

The previous prime is 212123102293. The next prime is 212123102339. The reversal of 212123102330 is 33201321212.

212123102330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 208309175281 + 3813927049 = 456409^2 + 61757^2 .

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

It is not an unprimeable number, because it can be changed into a prime (212123102339) 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 3 ways as a sum of consecutive naturals, for example, 10606155107 + ... + 10606155126.

Almost surely, 2^212123102330 is an apocalyptic number.

212123102330 is a deficient number, since it is larger than the sum of its proper divisors (169698481882).

212123102330 is a wasteful number, since it uses less digits than its factorization.

212123102330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21212310240.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 212123102330 its reverse (33201321212), we get a palindrome (245324423542).

The spelling of 212123102330 in words is "two hundred twelve billion, one hundred twenty-three million, one hundred two thousand, three hundred thirty".