2221220012012 has 24 divisors (see below), whose sum is σ = 4012586643072. Its totient is φ = 1074767760000.

The previous prime is 2221220011963. The next prime is 2221220012083. The reversal of 2221220012012 is 2102100221222.

It is a happy number.

2221220012012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 15193262 + ... + 15338762.

It is an arithmetic number, because the mean of its divisors is an integer number (167191110128).

Almost surely, 2^{2221220012012} is an apocalyptic number.

It is an amenable number.

2221220012012 is a deficient number, since it is larger than the sum of its proper divisors (1791366631060).

2221220012012 is a wasteful number, since it uses less digits than its factorization.

2221220012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268649 (or 268647 counting only the distinct ones).

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

Adding to 2221220012012 its reverse (2102100221222), we get a palindrome (4323320233234).

The spelling of 2221220012012 in words is "two trillion, two hundred twenty-one billion, two hundred twenty million, twelve thousand, twelve".