111110011212212 has 12 divisors (see below), whose sum is σ = 194442605885220. Its totient is φ = 55554980959296.

The previous prime is 111110011212149. The next prime is 111110011212247. The reversal of 111110011212212 is 212212110011111.

It can be written as a sum of positive squares in 2 ways, for example, as 35270366920996 + 75839644291216 = 5938886^2 + 8708596^2 .

It is a congruent number.

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, 7201808 + ... + 16555544.

It is an arithmetic number, because the mean of its divisors is an integer number (16203550490435).

Almost surely, 2^{111110011212212} is an apocalyptic number.

It is an amenable number.

111110011212212 is a deficient number, since it is larger than the sum of its proper divisors (83332594673008).

111110011212212 is a wasteful number, since it uses less digits than its factorization.

111110011212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12323410 (or 12323408 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 111110011212212 its reverse (212212110011111), we get a palindrome (323322121223323).

The spelling of 111110011212212 in words is "one hundred eleven trillion, one hundred ten billion, eleven million, two hundred twelve thousand, two hundred twelve".