110111212121012 has 24 divisors (see below), whose sum is σ = 193539224578560. Its totient is φ = 54814298620320.

The previous prime is 110111212120981. The next prime is 110111212121077. The reversal of 110111212121012 is 210121212111011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57378653 + ... + 59266619.

It is an arithmetic number, because the mean of its divisors is an integer number (8064134357440).

Almost surely, 2^{110111212121012} is an apocalyptic number.

It is an amenable number.

110111212121012 is a deficient number, since it is larger than the sum of its proper divisors (83428012457548).

110111212121012 is a wasteful number, since it uses less digits than its factorization.

110111212121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1951871 (or 1951869 counting only the distinct ones).

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

Adding to 110111212121012 its reverse (210121212111011), we get a palindrome (320232424232023).

The spelling of 110111212121012 in words is "one hundred ten trillion, one hundred eleven billion, two hundred twelve million, one hundred twenty-one thousand, twelve".