22101231223 has 4 divisors (see below), whose sum is σ = 22164923880. Its totient is φ = 22037538568.

The previous prime is 22101231199. The next prime is 22101231253. The reversal of 22101231223 is 32213210122.

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-22101231223 is a prime.

It is a super-3 number, since 3×22101231223³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22101231223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22101231253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31845808 + ... + 31846501.

It is an arithmetic number, because the mean of its divisors is an integer number (5541230970).

Almost surely, 2^22101231223 is an apocalyptic number.

22101231223 is a deficient number, since it is larger than the sum of its proper divisors (63692657).

22101231223 is an equidigital number, since it uses as much as digits as its factorization.

22101231223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63692656.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 22101231223 its reverse (32213210122), we get a palindrome (54314441345).

The spelling of 22101231223 in words is "twenty-two billion, one hundred one million, two hundred thirty-one thousand, two hundred twenty-three".