2243545535221 has 8 divisors (see below), whose sum is σ = 2361744420800. Its totient is φ = 2125358403840.

The previous prime is 2243545535197. The next prime is 2243545535237. The reversal of 2243545535221 is 1225355453422.

It is a happy number.

2243545535221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2243545535221 - 2⁹ = 2243545534709 is a prime.

It is a super-2 number, since 2×2243545535221² (a number of 26 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 (2243545533221) 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, 2545401 + ... + 3311518.

It is an arithmetic number, because the mean of its divisors is an integer number (295218052600).

Almost surely, 2^{2243545535221} is an apocalyptic number.

It is an amenable number.

2243545535221 is a deficient number, since it is larger than the sum of its proper divisors (118198885579).

2243545535221 is a wasteful number, since it uses less digits than its factorization.

2243545535221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5877099.

The product of its digits is 1440000, while the sum is 43.

It can be divided in two parts, 224354 and 5535221, that added together give a palindrome (5759575).

The spelling of 2243545535221 in words is "two trillion, two hundred forty-three billion, five hundred forty-five million, five hundred thirty-five thousand, two hundred twenty-one".