22120403 has 4 divisors (see below), whose sum is σ = 22137888. Its totient is φ = 22102920.

The previous prime is 22120393. The next prime is 22120433. The reversal of 22120403 is 30402122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22120403 - 2¹² = 22116307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22120433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6683 + ... + 9428.

It is an arithmetic number, because the mean of its divisors is an integer number (5534472).

Almost surely, 2^22120403 is an apocalyptic number.

22120403 is a deficient number, since it is larger than the sum of its proper divisors (17485).

22120403 is a wasteful number, since it uses less digits than its factorization.

22120403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17484.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 22120403 is about 4703.2332495848. The cubic root of 22120403 is about 280.7141760032.

Adding to 22120403 its reverse (30402122), we get a palindrome (52522525).

The spelling of 22120403 in words is "twenty-two million, one hundred twenty thousand, four hundred three".