4440224541021 has 16 divisors (see below), whose sum is σ = 5921970264000. Its totient is φ = 2959314401408.

The previous prime is 4440224541013. The next prime is 4440224541029. The reversal of 4440224541021 is 1201454220444.

It is an interprime number because it is at equal distance from previous prime (4440224541013) and next prime (4440224541029).

It is a cyclic number.

It is not a de Polignac number, because 4440224541021 - 2³ = 4440224541013 is a prime.

It is a super-2 number, since 2×4440224541021² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4440224541029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273792505 + ... + 273808721.

It is an arithmetic number, because the mean of its divisors is an integer number (370123141500).

Almost surely, 2^{4440224541021} is an apocalyptic number.

It is an amenable number.

4440224541021 is a deficient number, since it is larger than the sum of its proper divisors (1481745722979).

4440224541021 is a wasteful number, since it uses less digits than its factorization.

4440224541021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36348.

The product of its (nonzero) digits is 40960, while the sum is 33.

Adding to 4440224541021 its reverse (1201454220444), we get a palindrome (5641678761465).

The spelling of 4440224541021 in words is "four trillion, four hundred forty billion, two hundred twenty-four million, five hundred forty-one thousand, twenty-one".