212120044422 has 64 divisors (see below), whose sum is σ = 498524350464. Its totient is φ = 59320419840.

The previous prime is 212120044369. The next prime is 212120044429. The reversal of 212120044422 is 224440021212.

It is a happy number.

212120044422 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212120044392 and 212120044401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212120044429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3969163 + ... + 4022249.

It is an arithmetic number, because the mean of its divisors is an integer number (7789442976).

Almost surely, 2^212120044422 is an apocalyptic number.

212120044422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212120044422 is an abundant number, since it is smaller than the sum of its proper divisors (286404306042).

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

212120044422 is a wasteful number, since it uses less digits than its factorization.

212120044422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57773.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 212120044422 its reverse (224440021212), we get a palindrome (436560065634).

The spelling of 212120044422 in words is "two hundred twelve billion, one hundred twenty million, forty-four thousand, four hundred twenty-two".