12212330220000 has 180 divisors, whose sum is σ = 43397126692920. Its totient is φ = 3256621344000.

The previous prime is 12212330219983. The next prime is 12212330220019. The reversal of 12212330220000 is 2203321221.

12212330220000 is a `hidden beast` number, since 122 + 12 + 330 + 2 + 200 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (180).

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

It is a congruent number.

It is an unprimeable number.

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 29 ways as a sum of consecutive naturals, for example, 33743140 + ... + 34103139.

It is an arithmetic number, because the mean of its divisors is an integer number (241095148294).

Almost surely, 2^{12212330220000} is an apocalyptic number.

12212330220000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212330220000 is an abundant number, since it is smaller than the sum of its proper divisors (31184796472920).

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

12212330220000 is an equidigital number, since it uses as much as digits as its factorization.

12212330220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67846315 (or 67846289 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12212330220000 its reverse (2203321221), we get a palindrome (12214533541221).

The spelling of 12212330220000 in words is "twelve trillion, two hundred twelve billion, three hundred thirty million, two hundred twenty thousand".