12222112021000 has 64 divisors (see below), whose sum is σ = 32685419594880. Its totient is φ = 4190438404800.

The previous prime is 12222112020959. The next prime is 12222112021061. The reversal of 12222112021000 is 12021122221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 873001002 + ... + 873015001.

It is an arithmetic number, because the mean of its divisors is an integer number (510709681170).

Almost surely, 2^{12222112021000} is an apocalyptic number.

12222112021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12222112021000 is an abundant number, since it is smaller than the sum of its proper divisors (20463307573880).

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

12222112021000 is a wasteful number, since it uses less digits than its factorization.

12222112021000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1746016031 (or 1746016017 counting only the distinct ones).

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

Adding to 12222112021000 its reverse (12021122221), we get a palindrome (12234133143221).

It can be divided in two parts, 122 and 22112021000, that added together give a palindrome (22112021122).

The spelling of 12222112021000 in words is "twelve trillion, two hundred twenty-two billion, one hundred twelve million, twenty-one thousand".