22003021223 has 4 divisors (see below), whose sum is σ = 22003490328. Its totient is φ = 22002552120.

The previous prime is 22003021207. The next prime is 22003021331. The reversal of 22003021223 is 32212030022.

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 22003021223 - 2⁴ = 22003021207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22003021123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155261 + ... + 260982.

It is an arithmetic number, because the mean of its divisors is an integer number (5500872582).

Almost surely, 2^22003021223 is an apocalyptic number.

22003021223 is a deficient number, since it is larger than the sum of its proper divisors (469105).

22003021223 is an equidigital number, since it uses as much as digits as its factorization.

22003021223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469104.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 22003021223 its reverse (32212030022), we get a palindrome (54215051245).

The spelling of 22003021223 in words is "twenty-two billion, three million, twenty-one thousand, two hundred twenty-three".