22203013 has 4 divisors (see below), whose sum is σ = 25374880. Its totient is φ = 19031148.

The previous prime is 22203011. The next prime is 22203043. The reversal of 22203013 is 31030222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22203013 - 2¹ = 22203011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22202984 and 22203002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22203011) 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, 1585923 + ... + 1585936.

It is an arithmetic number, because the mean of its divisors is an integer number (6343720).

Almost surely, 2^22203013 is an apocalyptic number.

It is an amenable number.

22203013 is a deficient number, since it is larger than the sum of its proper divisors (3171867).

22203013 is an equidigital number, since it uses as much as digits as its factorization.

22203013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3171866.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 22203013 is about 4712.0073217261. The cubic root of 22203013 is about 281.0631899869.

Adding to 22203013 its reverse (31030222), we get a palindrome (53233235).

The spelling of 22203013 in words is "twenty-two million, two hundred three thousand, thirteen".