22213021223 has 4 divisors (see below), whose sum is σ = 22214184408. Its totient is φ = 22211858040.

The previous prime is 22213021169. The next prime is 22213021261. The reversal of 22213021223 is 32212031222.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22213021223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22213021195 and 22213021204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22213021273) 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, 552461 + ... + 591302.

It is an arithmetic number, because the mean of its divisors is an integer number (5553546102).

Almost surely, 2^22213021223 is an apocalyptic number.

22213021223 is a deficient number, since it is larger than the sum of its proper divisors (1163185).

22213021223 is a wasteful number, since it uses less digits than its factorization.

22213021223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163184.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22213021223 its reverse (32212031222), we get a palindrome (54425052445).

Subtracting 22213021223 from its reverse (32212031222), we obtain a palindrome (9999009999).

The spelling of 22213021223 in words is "twenty-two billion, two hundred thirteen million, twenty-one thousand, two hundred twenty-three".