212230322412 has 12 divisors (see below), whose sum is σ = 495204085656. Its totient is φ = 70743440800.

The previous prime is 212230322377. The next prime is 212230322413. The reversal of 212230322412 is 214223032212.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×212230322412² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212230322413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8842930089 + ... + 8842930112.

It is an arithmetic number, because the mean of its divisors is an integer number (41267007138).

Almost surely, 2^212230322412 is an apocalyptic number.

It is an amenable number.

212230322412 is an abundant number, since it is smaller than the sum of its proper divisors (282973763244).

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

212230322412 is a wasteful number, since it uses less digits than its factorization.

212230322412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17685860208 (or 17685860206 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 212230322412 its reverse (214223032212), we get a palindrome (426453354624).

The spelling of 212230322412 in words is "two hundred twelve billion, two hundred thirty million, three hundred twenty-two thousand, four hundred twelve".