22120011220112 has 160 divisors (see below), whose sum is σ = 49730017075200. Its totient is φ = 9443797848576.

The previous prime is 22120011220091. The next prime is 22120011220117. The reversal of 22120011220112 is 21102211002122.

It is not an unprimeable number, because it can be changed into a prime (22120011220117) 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 31 ways as a sum of consecutive naturals, for example, 544284689 + ... + 544325327.

It is an arithmetic number, because the mean of its divisors is an integer number (310812606720).

Almost surely, 2^{22120011220112} 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 22120011220112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24865008537600).

22120011220112 is an abundant number, since it is smaller than the sum of its proper divisors (27610005855088).

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

22120011220112 is a wasteful number, since it uses less digits than its factorization.

22120011220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43925 (or 43919 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22120011220112 its reverse (21102211002122), we get a palindrome (43222222222234).

The spelling of 22120011220112 in words is "twenty-two trillion, one hundred twenty billion, eleven million, two hundred twenty thousand, one hundred twelve".