12111100222 has 16 divisors (see below), whose sum is σ = 19568016720. Its totient is φ = 5588615232.

The previous prime is 12111100219. The next prime is 12111100241. The reversal of 12111100222 is 22200111121.

It is a Harshad number since it is a multiple of its sum of digits (13).

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, 92929 + ... + 181267.

It is an arithmetic number, because the mean of its divisors is an integer number (1223001045).

Almost surely, 2^12111100222 is an apocalyptic number.

12111100222 is a deficient number, since it is larger than the sum of its proper divisors (7456916498).

12111100222 is a wasteful number, since it uses less digits than its factorization.

12111100222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93627.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12111100222 its reverse (22200111121), we get a palindrome (34311211343).

The spelling of 12111100222 in words is "twelve billion, one hundred eleven million, one hundred thousand, two hundred twenty-two".