13121121320122 has 16 divisors (see below), whose sum is σ = 20769745292640. Its totient is φ = 6199612399728.

The previous prime is 13121121320059. The next prime is 13121121320129. The reversal of 13121121320122 is 22102312112131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13121121320093 and 13121121320102.

It is not an unprimeable number, because it can be changed into a prime (13121121320129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434862328 + ... + 434892499.

It is an arithmetic number, because the mean of its divisors is an integer number (1298109080790).

Almost surely, 2^{13121121320122} is an apocalyptic number.

13121121320122 is a deficient number, since it is larger than the sum of its proper divisors (7648623972518).

13121121320122 is a wasteful number, since it uses less digits than its factorization.

13121121320122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869755245.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 13121121320122 its reverse (22102312112131), we get a palindrome (35223433432253).

The spelling of 13121121320122 in words is "thirteen trillion, one hundred twenty-one billion, one hundred twenty-one million, three hundred twenty thousand, one hundred twenty-two".