12210022323212 has 24 divisors (see below), whose sum is σ = 24671797689504. Its totient is φ = 5178919629312.

The previous prime is 12210022323139. The next prime is 12210022323263. The reversal of 12210022323212 is 21232322001221.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 2247792263 + ... + 2247797694.

It is an arithmetic number, because the mean of its divisors is an integer number (1027991570396).

Almost surely, 2^{12210022323212} is an apocalyptic number.

It is an amenable number.

12210022323212 is an abundant number, since it is smaller than the sum of its proper divisors (12461775366292).

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

12210022323212 is a wasteful number, since it uses less digits than its factorization.

12210022323212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4495590065 (or 4495590063 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12210022323212 its reverse (21232322001221), we get a palindrome (33442344324433).

The spelling of 12210022323212 in words is "twelve trillion, two hundred ten billion, twenty-two million, three hundred twenty-three thousand, two hundred twelve".