112111212021020 has 48 divisors (see below), whose sum is σ = 235505417958048. Its totient is φ = 44830796820480.

The previous prime is 112111212021001. The next prime is 112111212021047. The reversal of 112111212021020 is 20120212111211.

It is a self number, because there is not a number n which added to its sum of digits gives 112111212021020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 986117099 + ... + 986230781.

It is an arithmetic number, because the mean of its divisors is an integer number (4906362874126).

Almost surely, 2^{112111212021020} is an apocalyptic number.

112111212021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112111212021020 is an abundant number, since it is smaller than the sum of its proper divisors (123394205937028).

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

112111212021020 is a wasteful number, since it uses less digits than its factorization.

112111212021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128310 (or 128308 counting only the distinct ones).

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

Adding to 112111212021020 its reverse (20120212111211), we get a palindrome (132231424132231).

The spelling of 112111212021020 in words is "one hundred twelve trillion, one hundred eleven billion, two hundred twelve million, twenty-one thousand, twenty".