111120111212212 has 24 divisors (see below), whose sum is σ = 199209768717960. Its totient is φ = 54203124810240.

The previous prime is 111120111212189. The next prime is 111120111212269. The reversal of 111120111212212 is 212212111021111.

It can be written as a sum of positive squares in 4 ways, for example, as 26643497886756 + 84476613325456 = 5161734^2 + 9191116^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 111120111212212.

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, 6357033 + ... + 16206544.

It is an arithmetic number, because the mean of its divisors is an integer number (8300407029915).

Almost surely, 2^{111120111212212} is an apocalyptic number.

It is an amenable number.

111120111212212 is a deficient number, since it is larger than the sum of its proper divisors (88089657505748).

111120111212212 is a wasteful number, since it uses less digits than its factorization.

111120111212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22593651 (or 22593649 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 111120111212212 its reverse (212212111021111), we get a palindrome (323332222233323).

The spelling of 111120111212212 in words is "one hundred eleven trillion, one hundred twenty billion, one hundred eleven million, two hundred twelve thousand, two hundred twelve".