22104121 has 8 divisors (see below), whose sum is σ = 24106880. Its totient is φ = 20144592.

The previous prime is 22104113. The next prime is 22104151. The reversal of 22104121 is 12140122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22104121 - 2³ = 22104113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22104151) 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, 9735 + ... + 11788.

It is an arithmetic number, because the mean of its divisors is an integer number (3013360).

Almost surely, 2^22104121 is an apocalyptic number.

It is an amenable number.

22104121 is a deficient number, since it is larger than the sum of its proper divisors (2002759).

22104121 is a wasteful number, since it uses less digits than its factorization.

22104121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21615.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 22104121 is about 4701.5019940440. The cubic root of 22104121 is about 280.6452847013.

Adding to 22104121 its reverse (12140122), we get a palindrome (34244243).

The spelling of 22104121 in words is "twenty-two million, one hundred four thousand, one hundred twenty-one".