44121223444 has 12 divisors (see below), whose sum is σ = 77216796468. Its totient is φ = 22059281600.

The previous prime is 44121223429. The next prime is 44121223453. The reversal of 44121223444 is 44432212144.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 43769660944 + 351562500 = 209212^2 + 18750^2 .

It is a super-2 number, since 2×44121223444² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255937 + ... + 392104.

It is an arithmetic number, because the mean of its divisors is an integer number (6434733039).

Almost surely, 2^44121223444 is an apocalyptic number.

It is an amenable number.

44121223444 is a deficient number, since it is larger than the sum of its proper divisors (33095573024).

44121223444 is a wasteful number, since it uses less digits than its factorization.

44121223444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665066 (or 665064 counting only the distinct ones).

The product of its digits is 24576, while the sum is 31.

Adding to 44121223444 its reverse (44432212144), we get a palindrome (88553435588).

The spelling of 44121223444 in words is "forty-four billion, one hundred twenty-one million, two hundred twenty-three thousand, four hundred forty-four".