221443041123 has 6 divisors (see below), whose sum is σ = 319862170524. Its totient is φ = 147628694076.

The previous prime is 221443041089. The next prime is 221443041137. The reversal of 221443041123 is 321140344122.

221443041123 is a `hidden beast` number, since 2 + 214 + 4 + 30 + 411 + 2 + 3 = 666.

221443041123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 221443041123 - 2¹³ = 221443032931 is a prime.

It is a super-2 number, since 2×221443041123² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221443041623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12302391165 + ... + 12302391182.

It is an arithmetic number, because the mean of its divisors is an integer number (53310361754).

Almost surely, 2^221443041123 is an apocalyptic number.

221443041123 is a deficient number, since it is larger than the sum of its proper divisors (98419129401).

221443041123 is a wasteful number, since it uses less digits than its factorization.

221443041123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24604782353 (or 24604782350 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 221443041123 its reverse (321140344122), we get a palindrome (542583385245).

The spelling of 221443041123 in words is "two hundred twenty-one billion, four hundred forty-three million, forty-one thousand, one hundred twenty-three".