221131220110223 has 8 divisors (see below), whose sum is σ = 225398053574208. Its totient is φ = 216867888360864.

The previous prime is 221131220110189. The next prime is 221131220110231. The reversal of 221131220110223 is 322011022131122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221131220110223 - 2¹⁶ = 221131220044687 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 (221131220110123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 875301140 + ... + 875553737.

It is an arithmetic number, because the mean of its divisors is an integer number (28174756696776).

Almost surely, 2^{221131220110223} is an apocalyptic number.

221131220110223 is a deficient number, since it is larger than the sum of its proper divisors (4266833463985).

221131220110223 is a wasteful number, since it uses less digits than its factorization.

221131220110223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1750857313.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 221131220110223 its reverse (322011022131122), we get a palindrome (543142242241345).

The spelling of 221131220110223 in words is "two hundred twenty-one trillion, one hundred thirty-one billion, two hundred twenty million, one hundred ten thousand, two hundred twenty-three".