112131121012220 has 24 divisors (see below), whose sum is σ = 235476295589808. Its totient is φ = 44852269078400.

The previous prime is 112131121012217. The next prime is 112131121012279. The reversal of 112131121012220 is 22210121131211.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 112131121012192 and 112131121012201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6022001 + ... + 16140840.

It is an arithmetic number, because the mean of its divisors is an integer number (9811512316242).

Almost surely, 2^{112131121012220} is an apocalyptic number.

112131121012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112131121012220 is an abundant number, since it is smaller than the sum of its proper divisors (123345174577588).

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

112131121012220 is a wasteful number, since it uses less digits than its factorization.

112131121012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22415821 (or 22415819 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 112131121012220 its reverse (22210121131211), we get a palindrome (134341242143431).

The spelling of 112131121012220 in words is "one hundred twelve trillion, one hundred thirty-one billion, one hundred twenty-one million, twelve thousand, two hundred twenty".