100111111222 has 16 divisors (see below), whose sum is σ = 151016065200. Its totient is φ = 49772495520.

The previous prime is 100111111201. The next prime is 100111111259. The reversal of 100111111222 is 222111111001.

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, 3961804 + ... + 3986992.

It is an arithmetic number, because the mean of its divisors is an integer number (9438504075).

Almost surely, 2^100111111222 is an apocalyptic number.

100111111222 is a deficient number, since it is larger than the sum of its proper divisors (50904953978).

100111111222 is a wasteful number, since it uses less digits than its factorization.

100111111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36351.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 100111111222 its reverse (222111111001), we get a palindrome (322222222223).

The spelling of 100111111222 in words is "one hundred billion, one hundred eleven million, one hundred eleven thousand, two hundred twenty-two".