21223222330112 has 72 divisors (see below), whose sum is σ = 46691214043152. Its totient is φ = 9547466342400.

The previous prime is 21223222329931. The next prime is 21223222330151. The reversal of 21223222330112 is 21103322232212.

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, 38575589 + ... + 39121892.

Almost surely, 2^{21223222330112} is an apocalyptic number.

21223222330112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21223222330112 is an abundant number, since it is smaller than the sum of its proper divisors (25467991713040).

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

21223222330112 is an equidigital number, since it uses as much as digits as its factorization.

21223222330112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77697605 (or 77697591 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 21223222330112 its reverse (21103322232212), we get a palindrome (42326544562324).

The spelling of 21223222330112 in words is "twenty-one trillion, two hundred twenty-three billion, two hundred twenty-two million, three hundred thirty thousand, one hundred twelve".