12220021120000 has 110 divisors (see below), whose sum is σ = 30525366137288. Its totient is φ = 4888008192000.

The previous prime is 12220021119989. The next prime is 12220021120007. The reversal of 12220021120000 is 2112002221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220021120007) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8906892 + ... + 10186891.

Almost surely, 2^{12220021120000} is an apocalyptic number.

12220021120000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220021120000 is an abundant number, since it is smaller than the sum of its proper divisors (18305345017288).

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

12220021120000 is an frugal number, since it uses more digits than its factorization.

12220021120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19093823 (or 19093790 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12220021120000 its reverse (2112002221), we get a palindrome (12222133122221).

The spelling of 12220021120000 in words is "twelve trillion, two hundred twenty billion, twenty-one million, one hundred twenty thousand".