12000000022020 has 192 divisors, whose sum is σ = 37901353351680. Its totient is φ = 3190930744320.

The previous prime is 12000000021949. The next prime is 12000000022033. The reversal of 12000000022020 is 2022000000021.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12000000021993 and 12000000022011.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15051625 + ... + 15828815.

It is an arithmetic number, because the mean of its divisors is an integer number (197402882040).

Almost surely, 2^{12000000022020} is an apocalyptic number.

12000000022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12000000022020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18950676675840).

12000000022020 is an abundant number, since it is smaller than the sum of its proper divisors (25901353329660).

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

12000000022020 is an equidigital number, since it uses as much as digits as its factorization.

12000000022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777574 (or 777554 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 12000000022020 its reverse (2022000000021), we get a palindrome (14022000022041).

The spelling of 12000000022020 in words is "twelve trillion, twenty-two thousand, twenty".