12031221223000 has 96 divisors (see below), whose sum is σ = 32749475372640. Its totient is φ = 4124990116800.

The previous prime is 12031221222991. The next prime is 12031221223003. The reversal of 12031221223000 is 32212213021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031221223003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122718564 + ... + 122816563.

It is an arithmetic number, because the mean of its divisors is an integer number (341140368465).

Almost surely, 2^{12031221223000} is an apocalyptic number.

12031221223000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12031221223000 is an abundant number, since it is smaller than the sum of its proper divisors (20718254149640).

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

12031221223000 is a wasteful number, since it uses less digits than its factorization.

12031221223000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245535162 (or 245535141 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12031221223000 its reverse (32212213021), we get a palindrome (12063433436021).

The spelling of 12031221223000 in words is "twelve trillion, thirty-one billion, two hundred twenty-one million, two hundred twenty-three thousand".