21113240222244 has 24 divisors (see below), whose sum is σ = 49265186346880. Its totient is φ = 7037609717664.

The previous prime is 21113240222189. The next prime is 21113240222303. The reversal of 21113240222244 is 44222204231112.

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, 16484899 + ... + 17719434.

Almost surely, 2^{21113240222244} is an apocalyptic number.

It is an amenable number.

21113240222244 is an abundant number, since it is smaller than the sum of its proper divisors (28151946124636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21113240222244 is a wasteful number, since it uses less digits than its factorization.

21113240222244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34255779 (or 34255777 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 21113240222244 its reverse (44222204231112), we get a palindrome (65335444453356).

The spelling of 21113240222244 in words is "twenty-one trillion, one hundred thirteen billion, two hundred forty million, two hundred twenty-two thousand, two hundred forty-four".