12022021120020 has 48 divisors (see below), whose sum is σ = 33663608814528. Its totient is φ = 3205686615040.

The previous prime is 12022021120007. The next prime is 12022021120037. The reversal of 12022021120020 is 2002112022021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent 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, 4756509 + ... + 6831428.

It is an arithmetic number, because the mean of its divisors is an integer number (701325183636).

Almost surely, 2^{12022021120020} is an apocalyptic number.

12022021120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12022021120020 is an abundant number, since it is smaller than the sum of its proper divisors (21641587694508).

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

12022021120020 is a wasteful number, since it uses less digits than its factorization.

12022021120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11605240 (or 11605238 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12022021120020 its reverse (2002112022021), we get a palindrome (14024133142041).

The spelling of 12022021120020 in words is "twelve trillion, twenty-two billion, twenty-one million, one hundred twenty thousand, twenty".