1222322111312 has 20 divisors (see below), whose sum is σ = 2376677032116. Its totient is φ = 608986103040.

The previous prime is 1222322111293. The next prime is 1222322111363. The reversal of 1222322111312 is 2131112232221.

It can be written as a sum of positive squares in 2 ways, for example, as 818670278416 + 403651832896 = 904804^2 + 635336^2 .

It is a super-2 number, since 2×1222322111312² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 135929903 + ... + 135938894.

Almost surely, 2^{1222322111312} is an apocalyptic number.

It is an amenable number.

1222322111312 is a deficient number, since it is larger than the sum of its proper divisors (1154354920804).

1222322111312 is a wasteful number, since it uses less digits than its factorization.

1222322111312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271869086 (or 271869080 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

Adding to 1222322111312 its reverse (2131112232221), we get a palindrome (3353434343533).

The spelling of 1222322111312 in words is "one trillion, two hundred twenty-two billion, three hundred twenty-two million, one hundred eleven thousand, three hundred twelve".