111112122101212 has 12 divisors (see below), whose sum is σ = 194462682482880. Its totient is φ = 55551355677536.

The previous prime is 111112122101093. The next prime is 111112122101291. The reversal of 111112122101212 is 212101221211111.

It is a self number, because there is not a number n which added to its sum of digits gives 111112122101212.

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, 1176290137 + ... + 1176384592.

It is an arithmetic number, because the mean of its divisors is an integer number (16205223540240).

Almost surely, 2^{111112122101212} is an apocalyptic number.

It is an amenable number.

111112122101212 is a deficient number, since it is larger than the sum of its proper divisors (83350560381668).

111112122101212 is a wasteful number, since it uses less digits than its factorization.

111112122101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2352686540 (or 2352686538 counting only the distinct ones).

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

Adding to 111112122101212 its reverse (212101221211111), we get a palindrome (323213343312323).

The spelling of 111112122101212 in words is "one hundred eleven trillion, one hundred twelve billion, one hundred twenty-two million, one hundred one thousand, two hundred twelve".