326220532212 has 12 divisors (see below), whose sum is σ = 761181241856. Its totient is φ = 108740177400.

The previous prime is 326220532147. The next prime is 326220532237. The reversal of 326220532212 is 212235022623.

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

It is a super-2 number, since 2×326220532212² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 326220532212.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 13592522164 + ... + 13592522187.

Almost surely, 2^326220532212 is an apocalyptic number.

It is an amenable number.

326220532212 is an abundant number, since it is smaller than the sum of its proper divisors (434960709644).

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

326220532212 is a wasteful number, since it uses less digits than its factorization.

326220532212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27185044358 (or 27185044356 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 326220532212 its reverse (212235022623), we get a palindrome (538455554835).

The spelling of 326220532212 in words is "three hundred twenty-six billion, two hundred twenty million, five hundred thirty-two thousand, two hundred twelve".