212413220412 has 12 divisors (see below), whose sum is σ = 495630847656. Its totient is φ = 70804406800.

The previous prime is 212413220353. The next prime is 212413220447. The reversal of 212413220412 is 214022314212.

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

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, 8850550839 + ... + 8850550862.

It is an arithmetic number, because the mean of its divisors is an integer number (41302570638).

Almost surely, 2^212413220412 is an apocalyptic number.

It is an amenable number.

212413220412 is an abundant number, since it is smaller than the sum of its proper divisors (283217627244).

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

212413220412 is a wasteful number, since it uses less digits than its factorization.

212413220412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17701101708 (or 17701101706 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 212413220412 its reverse (214022314212), we get a palindrome (426435534624).

The spelling of 212413220412 in words is "two hundred twelve billion, four hundred thirteen million, two hundred twenty thousand, four hundred twelve".