12000122100020 has 12 divisors (see below), whose sum is σ = 25200256410084. Its totient is φ = 4800048840000.

The previous prime is 12000122099983. The next prime is 12000122100073. The reversal of 12000122100020 is 2000122100021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7051552786576 + 4948569313444 = 2655476^2 + 2224538^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12000122099974 and 12000122100010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300003052481 + ... + 300003052520.

It is an arithmetic number, because the mean of its divisors is an integer number (2100021367507).

Almost surely, 2^{12000122100020} is an apocalyptic number.

12000122100020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12000122100020 is an abundant number, since it is smaller than the sum of its proper divisors (13200134310064).

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

12000122100020 is a wasteful number, since it uses less digits than its factorization.

12000122100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600006105010 (or 600006105008 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12000122100020 its reverse (2000122100021), we get a palindrome (14000244200041).

Subtracting from 12000122100020 its reverse (2000122100021), we obtain a palindrome (9999999999999).

The spelling of 12000122100020 in words is "twelve trillion, one hundred twenty-two million, one hundred thousand, twenty".