440430221214221 has 8 divisors (see below), whose sum is σ = 507803238619584. Its totient is φ = 374170807402560.

The previous prime is 440430221214187. The next prime is 440430221214227. The reversal of 440430221214221 is 122412122034044.

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

It is not a de Polignac number, because 440430221214221 - 2¹⁸ = 440430220952077 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 (440430221214227) 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 7 ways as a sum of consecutive naturals, for example, 278400897575 + ... + 278400899156.

It is an arithmetic number, because the mean of its divisors is an integer number (63475404827448).

Almost surely, 2^{440430221214221} is an apocalyptic number.

It is an amenable number.

440430221214221 is a deficient number, since it is larger than the sum of its proper divisors (67373017405363).

440430221214221 is a wasteful number, since it uses less digits than its factorization.

440430221214221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556801796851.

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 440430221214221 its reverse (122412122034044), we get a palindrome (562842343248265).

The spelling of 440430221214221 in words is "four hundred forty trillion, four hundred thirty billion, two hundred twenty-one million, two hundred fourteen thousand, two hundred twenty-one".