111222222212012 has 12 divisors (see below), whose sum is σ = 194697638936136. Its totient is φ = 55594325373120.

The previous prime is 111222222211999. The next prime is 111222222212089. The reversal of 111222222212012 is 210212222222111.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4196418314 + ... + 4196444817.

It is an arithmetic number, because the mean of its divisors is an integer number (16224803244678).

Almost surely, 2^{111222222212012} is an apocalyptic number.

It is an amenable number.

111222222212012 is a deficient number, since it is larger than the sum of its proper divisors (83475416724124).

111222222212012 is a wasteful number, since it uses less digits than its factorization.

111222222212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8392866448 (or 8392866446 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 111222222212012 its reverse (210212222222111), we get a palindrome (321434444434123).

The spelling of 111222222212012 in words is "one hundred eleven trillion, two hundred twenty-two billion, two hundred twenty-two million, two hundred twelve thousand, twelve".