12020221220000 has 120 divisors (see below), whose sum is σ = 33796054375776. Its totient is φ = 4121218656000.

The previous prime is 12020221219967. The next prime is 12020221220023. The reversal of 12020221220000 is 2212202021.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 42789362 + ... + 43069361.

Almost surely, 2^{12020221220000} is an apocalyptic number.

12020221220000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020221220000 is an abundant number, since it is smaller than the sum of its proper divisors (21775833155776).

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

12020221220000 is an frugal number, since it uses more digits than its factorization.

12020221220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85858760 (or 85858737 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 12020221220000 its reverse (2212202021), we get a palindrome (12022433422021).

The spelling of 12020221220000 in words is "twelve trillion, twenty billion, two hundred twenty-one million, two hundred twenty thousand".