12122110111222 has 16 divisors (see below), whose sum is σ = 18197831044800. Its totient is φ = 6056167743880.

The previous prime is 12122110111219. The next prime is 12122110111303. The reversal of 12122110111222 is 22211101122121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12122110111222.

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, 18335529 + ... + 18985147.

It is an arithmetic number, because the mean of its divisors is an integer number (1137364440300).

Almost surely, 2^{12122110111222} is an apocalyptic number.

12122110111222 is a deficient number, since it is larger than the sum of its proper divisors (6075720933578).

12122110111222 is a wasteful number, since it uses less digits than its factorization.

12122110111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657131.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 12122110111222 its reverse (22211101122121), we get a palindrome (34333211233343).

The spelling of 12122110111222 in words is "twelve trillion, one hundred twenty-two billion, one hundred ten million, one hundred eleven thousand, two hundred twenty-two".