33224544244021 has 8 divisors (see below), whose sum is σ = 37014081121080. Its totient is φ = 29611264896192.

The previous prime is 33224544244013. The next prime is 33224544244039. The reversal of 33224544244021 is 12044244542233.

It can be written as a sum of positive squares in 4 ways, for example, as 8788467766225 + 24436076477796 = 2964535^2 + 4943286^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 33224544244021 - 2³ = 33224544244013 is a prime.

It is a super-2 number, since 2×33224544244021² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33224544274021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44064381910 + ... + 44064382663.

It is an arithmetic number, because the mean of its divisors is an integer number (4626760140135).

Almost surely, 2^{33224544244021} is an apocalyptic number.

It is an amenable number.

33224544244021 is a deficient number, since it is larger than the sum of its proper divisors (3789536877059).

33224544244021 is a wasteful number, since it uses less digits than its factorization.

33224544244021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88128764615.

The product of its (nonzero) digits is 737280, while the sum is 40.

Adding to 33224544244021 its reverse (12044244542233), we get a palindrome (45268788786254).

The spelling of 33224544244021 in words is "thirty-three trillion, two hundred twenty-four billion, five hundred forty-four million, two hundred forty-four thousand, twenty-one".