12220221232000 has 128 divisors (see below), whose sum is σ = 30810450790080. Its totient is φ = 4819241728000.

The previous prime is 12220221231989. The next prime is 12220221232001. The reversal of 12220221232000 is 23212202221.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220221232001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4242619 + ... + 6514618.

Almost surely, 2^{12220221232000} is an apocalyptic number.

12220221232000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220221232000 is an abundant number, since it is smaller than the sum of its proper divisors (18590229558080).

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

12220221232000 is an equidigital number, since it uses as much as digits as its factorization.

12220221232000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10757337 (or 10757315 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 12220221232000 its reverse (23212202221), we get a palindrome (12243433434221).

The spelling of 12220221232000 in words is "twelve trillion, two hundred twenty billion, two hundred twenty-one million, two hundred thirty-two thousand".