212224043442 has 16 divisors (see below), whose sum is σ = 425556311040. Its totient is φ = 70556643792.

The previous prime is 212224043431. The next prime is 212224043459. The reversal of 212224043442 is 244340422212.

It is a happy number.

212224043442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212224043442² (a number of 23 digits) contains 22 as substring.

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, 46173517 + ... + 46178112.

It is an arithmetic number, because the mean of its divisors is an integer number (26597269440).

Almost surely, 2^212224043442 is an apocalyptic number.

212224043442 is an abundant number, since it is smaller than the sum of its proper divisors (213332267598).

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

212224043442 is a wasteful number, since it uses less digits than its factorization.

212224043442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92352017.

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 212224043442 its reverse (244340422212), we get a palindrome (456564465654).

The spelling of 212224043442 in words is "two hundred twelve billion, two hundred twenty-four million, forty-three thousand, four hundred forty-two".