1311211010122 has 16 divisors (see below), whose sum is σ = 2118340036512. Its totient is φ = 605108614320.

The previous prime is 1311211010111. The next prime is 1311211010173. The reversal of 1311211010122 is 2210101121131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1311211010096 and 1311211010105.

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, 2492904 + ... + 2972707.

It is an arithmetic number, because the mean of its divisors is an integer number (132396252282).

Almost surely, 2^{1311211010122} is an apocalyptic number.

1311211010122 is a deficient number, since it is larger than the sum of its proper divisors (807129026390).

1311211010122 is a wasteful number, since it uses less digits than its factorization.

1311211010122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5474853.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 1311211010122 its reverse (2210101121131), we get a palindrome (3521312131253).

The spelling of 1311211010122 in words is "one trillion, three hundred eleven billion, two hundred eleven million, ten thousand, one hundred twenty-two".