12223221211222 has 16 divisors (see below), whose sum is σ = 21071155484160. Its totient is φ = 5209257881448.

The previous prime is 12223221211183. The next prime is 12223221211283. The reversal of 12223221211222 is 22211212232221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2438788638 + ... + 2438793649.

It is an arithmetic number, because the mean of its divisors is an integer number (1316947217760).

Almost surely, 2^{12223221211222} is an apocalyptic number.

12223221211222 is a deficient number, since it is larger than the sum of its proper divisors (8847934272938).

12223221211222 is a wasteful number, since it uses less digits than its factorization.

12223221211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4877582475.

The product of its digits is 1536, while the sum is 25.

Adding to 12223221211222 its reverse (22211212232221), we get a palindrome (34434433443443).

The spelling of 12223221211222 in words is "twelve trillion, two hundred twenty-three billion, two hundred twenty-one million, two hundred eleven thousand, two hundred twenty-two".