212013220330 has 8 divisors (see below), whose sum is σ = 381623796612. Its totient is φ = 84805288128.

The previous prime is 212013220319. The next prime is 212013220339. The reversal of 212013220330 is 33022310212.

212013220330 is digitally balanced in base 2 and base 3, because in such bases 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 211656123721 + 357096609 = 460061^2 + 18897^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 212013220298 and 212013220307.

It is not an unprimeable number, because it can be changed into a prime (212013220339) 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, 10600661007 + ... + 10600661026.

Almost surely, 2^212013220330 is an apocalyptic number.

212013220330 is a deficient number, since it is larger than the sum of its proper divisors (169610576282).

212013220330 is a wasteful number, since it uses less digits than its factorization.

212013220330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21201322040.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 212013220330 its reverse (33022310212), we get a palindrome (245035530542).

The spelling of 212013220330 in words is "two hundred twelve billion, thirteen million, two hundred twenty thousand, three hundred thirty".