21332231112 has 64 divisors (see below), whose sum is σ = 54096356160. Its totient is φ = 7008768000.

The previous prime is 21332231099. The next prime is 21332231149. The reversal of 21332231112 is 21113223312.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3642987 + ... + 3648837.

It is an arithmetic number, because the mean of its divisors is an integer number (845255565).

Almost surely, 2^21332231112 is an apocalyptic number.

It is an amenable number.

21332231112 is an abundant number, since it is smaller than the sum of its proper divisors (32764125048).

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

21332231112 is a wasteful number, since it uses less digits than its factorization.

21332231112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8014 (or 8010 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

Adding to 21332231112 its reverse (21113223312), we get a palindrome (42445454424).

The spelling of 21332231112 in words is "twenty-one billion, three hundred thirty-two million, two hundred thirty-one thousand, one hundred twelve".