111012220121012 has 96 divisors (see below), whose sum is σ = 226235057529600. Its totient is φ = 46682302648320.

The previous prime is 111012220120981. The next prime is 111012220121021. The reversal of 111012220121012 is 210121022210111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4057302212 + ... + 4057329572.

It is an arithmetic number, because the mean of its divisors is an integer number (2356615182600).

Almost surely, 2^{111012220121012} is an apocalyptic number.

It is an amenable number.

111012220121012 is an abundant number, since it is smaller than the sum of its proper divisors (115222837408588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111012220121012 is a wasteful number, since it uses less digits than its factorization.

111012220121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39321 (or 39319 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111012220121012 its reverse (210121022210111), we get a palindrome (321133242331123).

The spelling of 111012220121012 in words is "one hundred eleven trillion, twelve billion, two hundred twenty million, one hundred twenty-one thousand, twelve".