12120202221020 has 24 divisors (see below), whose sum is σ = 25525774605744. Its totient is φ = 4834109470976.

The previous prime is 12120202221013. The next prime is 12120202221109. The reversal of 12120202221020 is 2012220202121.

It is a happy number.

12120202221020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12120202221020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 873206477 + ... + 873220356.

It is an arithmetic number, because the mean of its divisors is an integer number (1063573941906).

Almost surely, 2^{12120202221020} is an apocalyptic number.

12120202221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120202221020 is an abundant number, since it is smaller than the sum of its proper divisors (13405572384724).

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

12120202221020 is a wasteful number, since it uses less digits than its factorization.

12120202221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746427189 (or 1746427187 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12120202221020 its reverse (2012220202121), we get a palindrome (14132422423141).

The spelling of 12120202221020 in words is "twelve trillion, one hundred twenty billion, two hundred two million, two hundred twenty-one thousand, twenty".