22211221223 has 16 divisors (see below), whose sum is σ = 22934016000. Its totient is φ = 21497699520.

The previous prime is 22211221211. The next prime is 22211221229. The reversal of 22211221223 is 32212211222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22211221223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22211221195 and 22211221204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22211221229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2925290 + ... + 2932872.

It is an arithmetic number, because the mean of its divisors is an integer number (1433376000).

Almost surely, 2^22211221223 is an apocalyptic number.

22211221223 is a deficient number, since it is larger than the sum of its proper divisors (722794777).

22211221223 is a wasteful number, since it uses less digits than its factorization.

22211221223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8182.

The product of its digits is 384, while the sum is 20.

Adding to 22211221223 its reverse (32212211222), we get a palindrome (54423432445).

The spelling of 22211221223 in words is "twenty-two billion, two hundred eleven million, two hundred twenty-one thousand, two hundred twenty-three".