12122331000020 has 48 divisors (see below), whose sum is σ = 25599088678800. Its totient is φ = 4821851151360.

The previous prime is 12122331000001. The next prime is 12122331000029. The reversal of 12122331000020 is 2000013322121.

It can be written as a sum of positive squares in 8 ways, for example, as 8357846308036 + 3764484691984 = 2890994^2 + 1940228^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122331000029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65679626 + ... + 65863934.

It is an arithmetic number, because the mean of its divisors is an integer number (533314347475).

Almost surely, 2^{12122331000020} is an apocalyptic number.

12122331000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122331000020 is an abundant number, since it is smaller than the sum of its proper divisors (13476757678780).

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

12122331000020 is a wasteful number, since it uses less digits than its factorization.

12122331000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202668 (or 202666 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12122331000020 its reverse (2000013322121), we get a palindrome (14122344322141).

The spelling of 12122331000020 in words is "twelve trillion, one hundred twenty-two billion, three hundred thirty-one million, twenty", and thus it is an aban number.