12021122211122 has 24 divisors (see below), whose sum is σ = 18463533906240. Its totient is φ = 5869903857720.

The previous prime is 12021122211113. The next prime is 12021122211209. The reversal of 12021122211122 is 22111222112021.

It is a junction number, because it is equal to n+sod(n) for n = 12021122211094 and 12021122211103.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 24873779 + ... + 25352457.

It is an arithmetic number, because the mean of its divisors is an integer number (769313912760).

Almost surely, 2^{12021122211122} is an apocalyptic number.

12021122211122 is a deficient number, since it is larger than the sum of its proper divisors (6442411695118).

12021122211122 is an equidigital number, since it uses as much as digits as its factorization.

12021122211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485558 (or 485515 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12021122211122 its reverse (22111222112021), we get a palindrome (34132344323143).

The spelling of 12021122211122 in words is "twelve trillion, twenty-one billion, one hundred twenty-two million, two hundred eleven thousand, one hundred twenty-two".