22081104 has 120 divisors (see below), whose sum is σ = 66156480. Its totient is φ = 6859776.

The previous prime is 22081091. The next prime is 22081133. The reversal of 22081104 is 40118022.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 195352 + ... + 195464.

It is an arithmetic number, because the mean of its divisors is an integer number (551304).

Almost surely, 2^22081104 is an apocalyptic number.

22081104 is a gapful number since it is divisible by the number (24) 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 22081104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33078240).

22081104 is an abundant number, since it is smaller than the sum of its proper divisors (44075376).

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

22081104 is a wasteful number, since it uses less digits than its factorization.

22081104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 22081104 is about 4699.0535217212. The cubic root of 22081104 is about 280.5478389814.

Adding to 22081104 its reverse (40118022), we get a palindrome (62199126).

The spelling of 22081104 in words is "twenty-two million, eighty-one thousand, one hundred four".