221440343214441 has 32 divisors (see below), whose sum is σ = 318072432384000. Its totient is φ = 136225208420928.

The previous prime is 221440343214379. The next prime is 221440343214491. The reversal of 221440343214441 is 144412343044122.

It is a happy number.

221440343214441 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 221440343214441 - 2¹¹ = 221440343212393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 221440343214441.

It is not an unprimeable number, because it can be changed into a prime (221440343214491) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3828535600 + ... + 3828593438.

It is an arithmetic number, because the mean of its divisors is an integer number (9939763512000).

Almost surely, 2^{221440343214441} is an apocalyptic number.

It is an amenable number.

221440343214441 is a deficient number, since it is larger than the sum of its proper divisors (96632089169559).

221440343214441 is a wasteful number, since it uses less digits than its factorization.

221440343214441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89133.

The product of its (nonzero) digits is 294912, while the sum is 39.

Adding to 221440343214441 its reverse (144412343044122), we get a palindrome (365852686258563).

The spelling of 221440343214441 in words is "two hundred twenty-one trillion, four hundred forty billion, three hundred forty-three million, two hundred fourteen thousand, four hundred forty-one".