112321012122 has 80 divisors (see below), whose sum is σ = 274702428000. Its totient is φ = 34019321760.

The previous prime is 112321012117. The next prime is 112321012127. The reversal of 112321012122 is 221210123211.

It is an interprime number because it is at equal distance from previous prime (112321012117) and next prime (112321012127).

It is a super-2 number, since 2×112321012122² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 112321012095 and 112321012104.

It is not an unprimeable number, because it can be changed into a prime (112321012127) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3725404 + ... + 3755432.

It is an arithmetic number, because the mean of its divisors is an integer number (3433780350).

Almost surely, 2^112321012122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 112321012122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137351214000).

112321012122 is an abundant number, since it is smaller than the sum of its proper divisors (162381415878).

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

112321012122 is a wasteful number, since it uses less digits than its factorization.

112321012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32153 (or 32144 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 112321012122 its reverse (221210123211), we get a palindrome (333531135333).

The spelling of 112321012122 in words is "one hundred twelve billion, three hundred twenty-one million, twelve thousand, one hundred twenty-two".