212311344224 has 72 divisors (see below), whose sum is σ = 486314478720. Its totient is φ = 90974935296.

The previous prime is 212311344163. The next prime is 212311344239. The reversal of 212311344224 is 422443113212.

It is a super-2 number, since 2×212311344224² (a number of 23 digits) contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 17927297 + ... + 17939135.

It is an arithmetic number, because the mean of its divisors is an integer number (6754367760).

Almost surely, 2^212311344224 is an apocalyptic number.

It is an amenable number.

212311344224 is an abundant number, since it is smaller than the sum of its proper divisors (274003134496).

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

212311344224 is a wasteful number, since it uses less digits than its factorization.

212311344224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23300 (or 23285 counting only the distinct ones).

The product of its digits is 9216, while the sum is 29.

Adding to 212311344224 its reverse (422443113212), we get a palindrome (634754457436).

The spelling of 212311344224 in words is "two hundred twelve billion, three hundred eleven million, three hundred forty-four thousand, two hundred twenty-four".