12221112220011 has 24 divisors (see below), whose sum is σ = 18274000708080. Its totient is φ = 7861048848576.

The previous prime is 12221112219961. The next prime is 12221112220039. The reversal of 12221112220011 is 11002221112221.

12221112220011 is a `hidden beast` number, since 122 + 211 + 122 + 200 + 11 = 666.

It is not a de Polignac number, because 12221112220011 - 2³⁰ = 12220038478187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12221112220061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15733701 + ... + 16492166.

It is an arithmetic number, because the mean of its divisors is an integer number (761416696170).

Almost surely, 2^{12221112220011} is an apocalyptic number.

12221112220011 is a deficient number, since it is larger than the sum of its proper divisors (6052888488069).

12221112220011 is a wasteful number, since it uses less digits than its factorization.

12221112220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32227355 (or 32227352 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12221112220011 its reverse (11002221112221), we get a palindrome (23223333332232).

The spelling of 12221112220011 in words is "twelve trillion, two hundred twenty-one billion, one hundred twelve million, two hundred twenty thousand, eleven".