22104312 has 16 divisors (see below), whose sum is σ = 55260840. Its totient is φ = 7368096.

The previous prime is 22104283. The next prime is 22104317. The reversal of 22104312 is 21340122.

It is a junction number, because it is equal to n+sod(n) for n = 22104291 and 22104300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22104317) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 460483 + ... + 460530.

Almost surely, 2^22104312 is an apocalyptic number.

It is an amenable number.

22104312 is an abundant number, since it is smaller than the sum of its proper divisors (33156528).

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

22104312 is a wasteful number, since it uses less digits than its factorization.

22104312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921022 (or 921018 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 22104312 is about 4701.5223066577. The cubic root of 22104312 is about 280.6460930437.

Adding to 22104312 its reverse (21340122), we get a palindrome (43444434).

The spelling of 22104312 in words is "twenty-two million, one hundred four thousand, three hundred twelve".