1222312323212 has 12 divisors (see below), whose sum is σ = 2147568665256. Its totient is φ = 608721276000.

The previous prime is 1222312323179. The next prime is 1222312323223. The reversal of 1222312323212 is 2123232132221.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 608720273 + ... + 608722280.

It is an arithmetic number, because the mean of its divisors is an integer number (178964055438).

Almost surely, 2^{1222312323212} is an apocalyptic number.

It is an amenable number.

1222312323212 is a deficient number, since it is larger than the sum of its proper divisors (925256342044).

1222312323212 is a wasteful number, since it uses less digits than its factorization.

1222312323212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217442808 (or 1217442806 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

Adding to 1222312323212 its reverse (2123232132221), we get a palindrome (3345544455433).

The spelling of 1222312323212 in words is "one trillion, two hundred twenty-two billion, three hundred twelve million, three hundred twenty-three thousand, two hundred twelve".