12111100112222 has 16 divisors (see below), whose sum is σ = 18592231875120. Its totient is φ = 5914996958208.

The previous prime is 12111100112207. The next prime is 12111100112297. The reversal of 12111100112222 is 22221100111121.

It is a self number, because there is not a number n which added to its sum of digits gives 12111100112222.

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, 326849123 + ... + 326886174.

It is an arithmetic number, because the mean of its divisors is an integer number (1162014492195).

Almost surely, 2^{12111100112222} is an apocalyptic number.

12111100112222 is a deficient number, since it is larger than the sum of its proper divisors (6481131762898).

12111100112222 is a wasteful number, since it uses less digits than its factorization.

12111100112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653735515.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12111100112222 its reverse (22221100111121), we get a palindrome (34332200223343).

The spelling of 12111100112222 in words is "twelve trillion, one hundred eleven billion, one hundred million, one hundred twelve thousand, two hundred twenty-two".