12222120112000 has 64 divisors (see below), whose sum is σ = 30387246168240. Its totient is φ = 4888848038400.

The previous prime is 12222120111953. The next prime is 12222120112043. The reversal of 12222120112000 is 21102122221.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381925254 + ... + 381957253.

Almost surely, 2^{12222120112000} is an apocalyptic number.

12222120112000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12222120112000 is an abundant number, since it is smaller than the sum of its proper divisors (18165126056240).

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

12222120112000 is an frugal number, since it uses more digits than its factorization.

12222120112000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763882536 (or 763882514 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12222120112000 its reverse (21102122221), we get a palindrome (12243222234221).

The spelling of 12222120112000 in words is "twelve trillion, two hundred twenty-two billion, one hundred twenty million, one hundred twelve thousand".