12212244221222 has 16 divisors (see below), whose sum is σ = 18342953956080. Its totient is φ = 6097927003872.

The previous prime is 12212244221189. The next prime is 12212244221237. The reversal of 12212244221222 is 22212244221221.

12212244221222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 33613328 + ... + 33974700.

It is an arithmetic number, because the mean of its divisors is an integer number (1146434622255).

Almost surely, 2^{12212244221222} is an apocalyptic number.

12212244221222 is a deficient number, since it is larger than the sum of its proper divisors (6130709734858).

12212244221222 is a wasteful number, since it uses less digits than its factorization.

12212244221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384007.

The product of its digits is 8192, while the sum is 29.

Adding to 12212244221222 its reverse (22212244221221), we get a palindrome (34424488442443).

Subtracting 12212244221222 from its reverse (22212244221221), we obtain a palindrome (9999999999999).

The spelling of 12212244221222 in words is "twelve trillion, two hundred twelve billion, two hundred forty-four million, two hundred twenty-one thousand, two hundred twenty-two".