221010332145223 has 8 divisors (see below), whose sum is σ = 225180575067600. Its totient is φ = 216840097987968.

The previous prime is 221010332145179. The next prime is 221010332145257. The reversal of 221010332145223 is 322541233010122.

It is a happy number.

221010332145223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 221010332145223 - 2³³ = 221001742210631 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 (221010332145623) 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, 72523048 + ... + 75509026.

It is an arithmetic number, because the mean of its divisors is an integer number (28147571883450).

Almost surely, 2^{221010332145223} is an apocalyptic number.

221010332145223 is a deficient number, since it is larger than the sum of its proper divisors (4170242922377).

221010332145223 is a wasteful number, since it uses less digits than its factorization.

221010332145223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4382561.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 221010332145223 its reverse (322541233010122), we get a palindrome (543551565155345).

The spelling of 221010332145223 in words is "two hundred twenty-one trillion, ten billion, three hundred thirty-two million, one hundred forty-five thousand, two hundred twenty-three".