22213231223 has 4 divisors (see below), whose sum is σ = 22276879800. Its totient is φ = 22149582648.

The previous prime is 22213231127. The next prime is 22213231231. The reversal of 22213231223 is 32213231222.

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 22213231223 - 2¹⁰ = 22213230199 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 (22213231823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31823765 + ... + 31824462.

It is an arithmetic number, because the mean of its divisors is an integer number (5569219950).

Almost surely, 2^22213231223 is an apocalyptic number.

22213231223 is a deficient number, since it is larger than the sum of its proper divisors (63648577).

22213231223 is an equidigital number, since it uses as much as digits as its factorization.

22213231223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63648576.

The product of its digits is 1728, while the sum is 23.

Adding to 22213231223 its reverse (32213231222), we get a palindrome (54426462445).

Subtracting 22213231223 from its reverse (32213231222), we obtain a palindrome (9999999999).

The spelling of 22213231223 in words is "twenty-two billion, two hundred thirteen million, two hundred thirty-one thousand, two hundred twenty-three".