21223330112 has 28 divisors (see below), whose sum is σ = 43473599616. Its totient is φ = 10269352320.

The previous prime is 21223330091. The next prime is 21223330151. The reversal of 21223330112 is 21103332212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5346638 + ... + 5350605.

Almost surely, 2^21223330112 is an apocalyptic number.

It is an amenable number.

21223330112 is an abundant number, since it is smaller than the sum of its proper divisors (22250269504).

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

21223330112 is a wasteful number, since it uses less digits than its factorization.

21223330112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10697286 (or 10697276 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21223330112 its reverse (21103332212), we get a palindrome (42326662324).

The spelling of 21223330112 in words is "twenty-one billion, two hundred twenty-three million, three hundred thirty thousand, one hundred twelve".