112121111620 has 96 divisors (see below), whose sum is σ = 280898150400. Its totient is φ = 36756027264.

The previous prime is 112121111593. The next prime is 112121111623. The reversal of 112121111620 is 26111121211.

It is a super-2 number, since 2×112121111620² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (112121111623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11390661 + ... + 11400499.

It is an arithmetic number, because the mean of its divisors is an integer number (2926022400).

Almost surely, 2^112121111620 is an apocalyptic number.

112121111620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 112121111620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140449075200).

112121111620 is an abundant number, since it is smaller than the sum of its proper divisors (168777038780).

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

112121111620 is a wasteful number, since it uses less digits than its factorization.

112121111620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13417 (or 13415 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 112121111620 its reverse (26111121211), we get a palindrome (138232232831).

The spelling of 112121111620 in words is "one hundred twelve billion, one hundred twenty-one million, one hundred eleven thousand, six hundred twenty".