12211222112000 has 72 divisors (see below), whose sum is σ = 30419680763472. Its totient is φ = 4884488832000.

The previous prime is 12211222111981. The next prime is 12211222112017. The reversal of 12211222112000 is 21122211221.

It is a super-2 number, since 2×12211222112000² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12211222112000.

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, 190768346 + ... + 190832345.

Almost surely, 2^{12211222112000} is an apocalyptic number.

12211222112000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12211222112000 is an abundant number, since it is smaller than the sum of its proper divisors (18208458651472).

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

12211222112000 is an frugal number, since it uses more digits than its factorization.

12211222112000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381600722 (or 381600698 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12211222112000 its reverse (21122211221), we get a palindrome (12232344323221).

The spelling of 12211222112000 in words is "twelve trillion, two hundred eleven billion, two hundred twenty-two million, one hundred twelve thousand".