1211323313122 has 16 divisors (see below), whose sum is σ = 2024227288440. Its totient is φ = 539793942912.

The previous prime is 1211323313119. The next prime is 1211323313141. The reversal of 1211323313122 is 2213133231121.

It can be written as a sum of positive squares in 4 ways, for example, as 827519521761 + 383803791361 = 909681^2 + 619519^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 803264043 + ... + 803265550.

Almost surely, 2^{1211323313122} is an apocalyptic number.

1211323313122 is a deficient number, since it is larger than the sum of its proper divisors (812903975318).

1211323313122 is a wasteful number, since it uses less digits than its factorization.

1211323313122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606529637.

The product of its digits is 1296, while the sum is 25.

Adding to 1211323313122 its reverse (2213133231121), we get a palindrome (3424456544243).

The spelling of 1211323313122 in words is "one trillion, two hundred eleven billion, three hundred twenty-three million, three hundred thirteen thousand, one hundred twenty-two".