212013223122 has 16 divisors (see below), whose sum is σ = 448969178592. Its totient is φ = 66513952320.

The previous prime is 212013223087. The next prime is 212013223133. The reversal of 212013223122 is 221322310212.

212013223122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1039280404 + ... + 1039280607.

It is an arithmetic number, because the mean of its divisors is an integer number (28060573662).

Almost surely, 2^212013223122 is an apocalyptic number.

212013223122 is an abundant number, since it is smaller than the sum of its proper divisors (236955955470).

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

212013223122 is a wasteful number, since it uses less digits than its factorization.

212013223122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2078561033.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 212013223122 its reverse (221322310212), we get a palindrome (433335533334).

The spelling of 212013223122 in words is "two hundred twelve billion, thirteen million, two hundred twenty-three thousand, one hundred twenty-two".