2012221220012 has 12 divisors (see below), whose sum is σ = 3539632665576. Its totient is φ = 1000897601280.

The previous prime is 2012221220011. The next prime is 2012221220017. The reversal of 2012221220012 is 2100221222102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2012221220011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1303251314 + ... + 1303252857.

It is an arithmetic number, because the mean of its divisors is an integer number (294969388798).

Almost surely, 2^{2012221220012} is an apocalyptic number.

It is an amenable number.

2012221220012 is a deficient number, since it is larger than the sum of its proper divisors (1527411445564).

2012221220012 is a wasteful number, since it uses less digits than its factorization.

2012221220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2606504368 (or 2606504366 counting only the distinct ones).

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

Adding to 2012221220012 its reverse (2100221222102), we get a palindrome (4112442442114).

The spelling of 2012221220012 in words is "two trillion, twelve billion, two hundred twenty-one million, two hundred twenty thousand, twelve".