111122001121012 has 48 divisors (see below), whose sum is σ = 235318195865088. Its totient is φ = 44822126062080.

The previous prime is 111122001121003. The next prime is 111122001121049. The reversal of 111122001121012 is 210121100221111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170752962 + ... + 171402502.

It is an arithmetic number, because the mean of its divisors is an integer number (4902462413856).

Almost surely, 2^{111122001121012} is an apocalyptic number.

It is an amenable number.

111122001121012 is an abundant number, since it is smaller than the sum of its proper divisors (124196194744076).

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

111122001121012 is a wasteful number, since it uses less digits than its factorization.

111122001121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008976 (or 1008974 counting only the distinct ones).

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

Adding to 111122001121012 its reverse (210121100221111), we get a palindrome (321243101342123).

The spelling of 111122001121012 in words is "one hundred eleven trillion, one hundred twenty-two billion, one million, one hundred twenty-one thousand, twelve".