12231311220000 has 360 divisors, whose sum is σ = 45354355510464. Its totient is φ = 3119869632000.

The previous prime is 12231311219971. The next prime is 12231311220013. The reversal of 12231311220000 is 2211313221.

12231311220000 is a `hidden beast` number, since 122 + 31 + 311 + 2 + 200 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 2662789 + ... + 5617211.

Almost surely, 2^{12231311220000} is an apocalyptic number.

12231311220000 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 12231311220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22677177755232).

12231311220000 is an abundant number, since it is smaller than the sum of its proper divisors (33123044290464).

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

12231311220000 is a wasteful number, since it uses less digits than its factorization.

12231311220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2954482 (or 2954456 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12231311220000 its reverse (2211313221), we get a palindrome (12233522533221).

The spelling of 12231311220000 in words is "twelve trillion, two hundred thirty-one billion, three hundred eleven million, two hundred twenty thousand".