22123303002221 has 4 divisors (see below), whose sum is σ = 23085185741472. Its totient is φ = 21161420262972.

The previous prime is 22123303002209. The next prime is 22123303002289. The reversal of 22123303002221 is 12220030332122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 22123303002221 - 2¹⁰ = 22123303001197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 961882739227 = 22123303002221 / (2 + 2 + 1 + 2 + 3 + 3 + 0 + 3 + 0 + 0 + 2 + 2 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22123303002721) 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, 480941369591 + ... + 480941369636.

It is an arithmetic number, because the mean of its divisors is an integer number (5771296435368).

Almost surely, 2^{22123303002221} is an apocalyptic number.

It is an amenable number.

22123303002221 is a deficient number, since it is larger than the sum of its proper divisors (961882739251).

22123303002221 is an equidigital number, since it uses as much as digits as its factorization.

22123303002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961882739250.

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

Adding to 22123303002221 its reverse (12220030332122), we get a palindrome (34343333334343).

The spelling of 22123303002221 in words is "twenty-two trillion, one hundred twenty-three billion, three hundred three million, two thousand, two hundred twenty-one".