12213323312000 has 64 divisors (see below), whose sum is σ = 30365375124240. Its totient is φ = 4885329318400.

The previous prime is 12213323311921. The next prime is 12213323312027. The reversal of 12213323312000 is 21332331221.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381650354 + ... + 381682353.

Almost surely, 2^{12213323312000} is an apocalyptic number.

12213323312000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12213323312000 is an abundant number, since it is smaller than the sum of its proper divisors (18152051812240).

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

12213323312000 is an frugal number, since it uses more digits than its factorization.

12213323312000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763332736 (or 763332714 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 12213323312000 its reverse (21332331221), we get a palindrome (12234655643221).

The spelling of 12213323312000 in words is "twelve trillion, two hundred thirteen billion, three hundred twenty-three million, three hundred twelve thousand".