1322112220121 has 16 divisors (see below), whose sum is σ = 1648378263168. Its totient is φ = 1030198214400.

The previous prime is 1322112220097. The next prime is 1322112220133. The reversal of 1322112220121 is 1210222112231.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1322112220121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1322112220093 and 1322112220102.

It is not an unprimeable number, because it can be changed into a prime (1322112220151) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5173841 + ... + 5423361.

It is an arithmetic number, because the mean of its divisors is an integer number (103023641448).

Almost surely, 2^{1322112220121} is an apocalyptic number.

1322112220121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1322112220121 is a deficient number, since it is larger than the sum of its proper divisors (326266043047).

1322112220121 is a wasteful number, since it uses less digits than its factorization.

1322112220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318352.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1322112220121 its reverse (1210222112231), we get a palindrome (2532334332352).

The spelling of 1322112220121 in words is "one trillion, three hundred twenty-two billion, one hundred twelve million, two hundred twenty thousand, one hundred twenty-one".