111102120111212 has 6 divisors (see below), whose sum is σ = 194428710194628. Its totient is φ = 55551060055604.

The previous prime is 111102120111197. The next prime is 111102120111251. The reversal of 111102120111212 is 212111021201111.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13887765013898 + ... + 13887765013905.

It is an arithmetic number, because the mean of its divisors is an integer number (32404785032438).

Almost surely, 2^{111102120111212} is an apocalyptic number.

It is an amenable number.

111102120111212 is a deficient number, since it is larger than the sum of its proper divisors (83326590083416).

111102120111212 is a wasteful number, since it uses less digits than its factorization.

111102120111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27775530027807 (or 27775530027805 counting only the distinct ones).

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

Adding to 111102120111212 its reverse (212111021201111), we get a palindrome (323213141312323).

The spelling of 111102120111212 in words is "one hundred eleven trillion, one hundred two billion, one hundred twenty million, one hundred eleven thousand, two hundred twelve".