21233011112 has 16 divisors (see below), whose sum is σ = 39870195840. Its totient is φ = 10600958896.

The previous prime is 21233011097. The next prime is 21233011141. The reversal of 21233011112 is 21111033212.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1937528 + ... + 1948455.

It is an arithmetic number, because the mean of its divisors is an integer number (2491887240).

Almost surely, 2^21233011112 is an apocalyptic number.

It is an amenable number.

21233011112 is a deficient number, since it is larger than the sum of its proper divisors (18637184728).

21233011112 is a wasteful number, since it uses less digits than its factorization.

21233011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3886672 (or 3886668 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 21233011112 its reverse (21111033212), we get a palindrome (42344044324).

The spelling of 21233011112 in words is "twenty-one billion, two hundred thirty-three million, eleven thousand, one hundred twelve".