22304220212 has 12 divisors (see below), whose sum is σ = 39044541060. Its totient is φ = 11148637056.

The previous prime is 22304220139. The next prime is 22304220233. The reversal of 22304220212 is 21202240322.

It can be written as a sum of positive squares in 2 ways, for example, as 18494368036 + 3809852176 = 135994^2 + 61724^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 853787 + ... + 879522.

It is an arithmetic number, because the mean of its divisors is an integer number (3253711755).

Almost surely, 2^22304220212 is an apocalyptic number.

It is an amenable number.

22304220212 is a deficient number, since it is larger than the sum of its proper divisors (16740320848).

22304220212 is a wasteful number, since it uses less digits than its factorization.

22304220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736530 (or 1736528 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 22304220212 its reverse (21202240322), we get a palindrome (43506460534).

The spelling of 22304220212 in words is "twenty-two billion, three hundred four million, two hundred twenty thousand, two hundred twelve".