12233211221100 has 144 divisors (see below), whose sum is σ = 36353589499136. Its totient is φ = 3173828832000.

The previous prime is 12233211221081. The next prime is 12233211221111. The reversal of 12233211221100 is 112211233221.

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 47 ways as a sum of consecutive naturals, for example, 315342705 + ... + 315381495.

Almost surely, 2^{12233211221100} is an apocalyptic number.

12233211221100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12233211221100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18176794749568).

12233211221100 is an abundant number, since it is smaller than the sum of its proper divisors (24120378278036).

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

12233211221100 is a wasteful number, since it uses less digits than its factorization.

12233211221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67256 (or 67249 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 12233211221100 its reverse (112211233221), we get a palindrome (12345422454321).

The spelling of 12233211221100 in words is "twelve trillion, two hundred thirty-three billion, two hundred eleven million, two hundred twenty-one thousand, one hundred".