21113120044112 has 40 divisors (see below), whose sum is σ = 41071145028480. Its totient is φ = 10514117952000.

The previous prime is 21113120044091. The next prime is 21113120044157. The reversal of 21113120044112 is 21144002131112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132741689 + ... + 132900647.

It is an arithmetic number, because the mean of its divisors is an integer number (1026778625712).

Almost surely, 2^{21113120044112} is an apocalyptic number.

It is an amenable number.

21113120044112 is a deficient number, since it is larger than the sum of its proper divisors (19958024984368).

21113120044112 is a wasteful number, since it uses less digits than its factorization.

21113120044112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192291 (or 192285 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 21113120044112 its reverse (21144002131112), we get a palindrome (42257122175224).

The spelling of 21113120044112 in words is "twenty-one trillion, one hundred thirteen billion, one hundred twenty million, forty-four thousand, one hundred twelve".