12222221012222 has 16 divisors (see below), whose sum is σ = 19743749367552. Its totient is φ = 5640978917280.

The previous prime is 12222221012207. The next prime is 12222221012251. The reversal of 12222221012222 is 22221012222221.

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, 1424483 + ... + 5145249.

It is an arithmetic number, because the mean of its divisors is an integer number (1233984335472).

Almost surely, 2^{12222221012222} is an apocalyptic number.

12222221012222 is a deficient number, since it is larger than the sum of its proper divisors (7521528355330).

12222221012222 is a wasteful number, since it uses less digits than its factorization.

12222221012222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3847123.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 12222221012222 its reverse (22221012222221), we get a palindrome (34443233234443).

The spelling of 12222221012222 in words is "twelve trillion, two hundred twenty-two billion, two hundred twenty-one million, twelve thousand, two hundred twenty-two".