1222012130312 has 8 divisors (see below), whose sum is σ = 2291272744350. Its totient is φ = 611006065152.

The previous prime is 1222012130299. The next prime is 1222012130359. The reversal of 1222012130312 is 2130312102221.

It can be written as a sum of positive squares in only one way, i.e., 1137776355556 + 84235774756 = 1066666^2 + 290234^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76375758137 + ... + 76375758152.

Almost surely, 2^{1222012130312} is an apocalyptic number.

It is an amenable number.

1222012130312 is a deficient number, since it is larger than the sum of its proper divisors (1069260614038).

1222012130312 is a wasteful number, since it uses less digits than its factorization.

1222012130312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152751516295 (or 152751516291 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1222012130312 its reverse (2130312102221), we get a palindrome (3352324232533).

The spelling of 1222012130312 in words is "one trillion, two hundred twenty-two billion, twelve million, one hundred thirty thousand, three hundred twelve".