22122112120122 has 96 divisors (see below), whose sum is σ = 52877008484352. Its totient is φ = 6043401580608.

The previous prime is 22122112120001. The next prime is 22122112120123. The reversal of 22122112120122 is 22102121122122.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (22122112120123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 597883 + ... + 6678449.

It is an arithmetic number, because the mean of its divisors is an integer number (550802171712).

Almost surely, 2^{22122112120122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22122112120122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26438504242176).

22122112120122 is an abundant number, since it is smaller than the sum of its proper divisors (30754896364230).

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

22122112120122 is a wasteful number, since it uses less digits than its factorization.

22122112120122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6080740 (or 6080711 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 22122112120122 its reverse (22102121122122), we get a palindrome (44224233242244).

The spelling of 22122112120122 in words is "twenty-two trillion, one hundred twenty-two billion, one hundred twelve million, one hundred twenty thousand, one hundred twenty-two".