22103712 has 48 divisors (see below), whose sum is σ = 64471680. Its totient is φ = 7367616.

The previous prime is 22103687. The next prime is 22103729. The reversal of 22103712 is 21730122.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11928 + ... + 13655.

It is an arithmetic number, because the mean of its divisors is an integer number (1343160).

Almost surely, 2^22103712 is an apocalyptic number.

It is an amenable number.

22103712 is an abundant number, since it is smaller than the sum of its proper divisors (42367968).

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

22103712 is a wasteful number, since it uses less digits than its factorization.

22103712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25602 (or 25588 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 22103712 is about 4701.4584971049. The cubic root of 22103712 is about 280.6435537325.

Adding to 22103712 its reverse (21730122), we get a palindrome (43833834).

The spelling of 22103712 in words is "twenty-two million, one hundred three thousand, seven hundred twelve".