22104120 has 64 divisors (see below), whose sum is σ = 66769920. Its totient is φ = 5853824.

The previous prime is 22104113. The next prime is 22104151. The reversal of 22104120 is 2140122.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 22104096 and 22104105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19489 + ... + 20591.

It is an arithmetic number, because the mean of its divisors is an integer number (1043280).

Almost surely, 2^22104120 is an apocalyptic number.

22104120 is a gapful number since it is divisible by the number (20) 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 22104120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33384960).

22104120 is an abundant number, since it is smaller than the sum of its proper divisors (44665800).

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

22104120 is a wasteful number, since it uses less digits than its factorization.

22104120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284 (or 1280 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 22104120 is about 4701.5018876950. The cubic root of 22104120 is about 280.6452804691.

Adding to 22104120 its reverse (2140122), we get a palindrome (24244242).

The spelling of 22104120 in words is "twenty-two million, one hundred four thousand, one hundred twenty".