44430223221 has 16 divisors (see below), whose sum is σ = 67427982720. Its totient is φ = 28897705440.

The previous prime is 44430223213. The next prime is 44430223249. The reversal of 44430223221 is 12232203444.

44430223221 is a `hidden beast` number, since 4 + 4 + 430 + 2 + 2 + 3 + 221 = 666.

It is not a de Polignac number, because 44430223221 - 2³ = 44430223213 is a prime.

It is a super-2 number, since 2×44430223221² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44430221221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20066745 + ... + 20068958.

It is an arithmetic number, because the mean of its divisors is an integer number (4214248920).

Almost surely, 2^44430223221 is an apocalyptic number.

44430223221 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

44430223221 is a deficient number, since it is larger than the sum of its proper divisors (22997759499).

44430223221 is a wasteful number, since it uses less digits than its factorization.

44430223221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40135753 (or 40135747 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 44430223221 its reverse (12232203444), we get a palindrome (56662426665).

The spelling of 44430223221 in words is "forty-four billion, four hundred thirty million, two hundred twenty-three thousand, two hundred twenty-one".