212220001122212 has 12 divisors (see below), whose sum is σ = 376472467744716. Its totient is φ = 104656438909440.

The previous prime is 212220001122161. The next prime is 212220001122229. The reversal of 212220001122212 is 212221100022212.

It can be written as a sum of positive squares in 2 ways, for example, as 55494990654016 + 156725010468196 = 7449496^2 + 12518986^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363390412589 + ... + 363390413172.

It is an arithmetic number, because the mean of its divisors is an integer number (31372705645393).

Almost surely, 2^{212220001122212} is an apocalyptic number.

It is an amenable number.

212220001122212 is a deficient number, since it is larger than the sum of its proper divisors (164252466622504).

212220001122212 is a wasteful number, since it uses less digits than its factorization.

212220001122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726780825838 (or 726780825836 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 212220001122212 its reverse (212221100022212), we get a palindrome (424441101144424).

The spelling of 212220001122212 in words is "two hundred twelve trillion, two hundred twenty billion, one million, one hundred twenty-two thousand, two hundred twelve".