221120100012223 has 4 divisors (see below), whose sum is σ = 226262427919528. Its totient is φ = 215977772104920.

The previous prime is 221120100012211. The next prime is 221120100012263. The reversal of 221120100012223 is 322210001021122.

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 221120100012223 - 2¹³ = 221120100004031 is a prime.

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 221120100012223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221120100012263) 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, 2571163953588 + ... + 2571163953673.

It is an arithmetic number, because the mean of its divisors is an integer number (56565606979882).

Almost surely, 2^{221120100012223} is an apocalyptic number.

221120100012223 is a deficient number, since it is larger than the sum of its proper divisors (5142327907305).

221120100012223 is an equidigital number, since it uses as much as digits as its factorization.

221120100012223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5142327907304.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 221120100012223 its reverse (322210001021122), we get a palindrome (543330101033345).

The spelling of 221120100012223 in words is "two hundred twenty-one trillion, one hundred twenty billion, one hundred million, twelve thousand, two hundred twenty-three".