12122112022112 has 96 divisors (see below), whose sum is σ = 24714334310400. Its totient is φ = 5848997299200.

The previous prime is 12122112022109. The next prime is 12122112022117. The reversal of 12122112022112 is 21122021122121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122112022117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49299089 + ... + 49544367.

It is an arithmetic number, because the mean of its divisors is an integer number (257440982400).

Almost surely, 2^{12122112022112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12122112022112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12357167155200).

12122112022112 is an abundant number, since it is smaller than the sum of its proper divisors (12592222288288).

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

12122112022112 is a wasteful number, since it uses less digits than its factorization.

12122112022112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245740 (or 245732 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12122112022112 its reverse (21122021122121), we get a palindrome (33244133144233).

It can be divided in two parts, 1212211 and 2022112, that added together give a palindrome (3234323).

The spelling of 12122112022112 in words is "twelve trillion, one hundred twenty-two billion, one hundred twelve million, twenty-two thousand, one hundred twelve".