18022106112 has 88 divisors (see below), whose sum is σ = 48502698816. Its totient is φ = 5948940288.

The previous prime is 18022106111. The next prime is 18022106131. The reversal of 18022106112 is 21160122081.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (18022106111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287938 + ... + 344894.

It is an arithmetic number, because the mean of its divisors is an integer number (551167032).

Almost surely, 2^18022106112 is an apocalyptic number.

18022106112 is a gapful number since it is divisible by the number (12) 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 18022106112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24251349408).

18022106112 is an abundant number, since it is smaller than the sum of its proper divisors (30480592704).

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

18022106112 is a wasteful number, since it uses less digits than its factorization.

18022106112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57083 (or 57065 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 24.

Adding to 18022106112 its reverse (21160122081), we get a palindrome (39182228193).

The spelling of 18022106112 in words is "eighteen billion, twenty-two million, one hundred six thousand, one hundred twelve".