12012222110020 has 24 divisors (see below), whose sum is σ = 27518908834368. Its totient is φ = 4368080767200.

The previous prime is 12012222109997. The next prime is 12012222110087. The reversal of 12012222110020 is 2001122221021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12012222109976 and 12012222110003.

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, 27300504576 + ... + 27300505015.

It is an arithmetic number, because the mean of its divisors is an integer number (1146621201432).

Almost surely, 2^{12012222110020} is an apocalyptic number.

12012222110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012222110020 is an abundant number, since it is smaller than the sum of its proper divisors (15506686724348).

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

12012222110020 is a wasteful number, since it uses less digits than its factorization.

12012222110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54601009611 (or 54601009609 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12012222110020 its reverse (2001122221021), we get a palindrome (14013344331041).

The spelling of 12012222110020 in words is "twelve trillion, twelve billion, two hundred twenty-two million, one hundred ten thousand, twenty".