5543231221 has 8 divisors (see below), whose sum is σ = 6047705664. Its totient is φ = 5038847520.

The previous prime is 5543231149. The next prime is 5543231231. The reversal of 5543231221 is 1221323455.

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 5543231221 - 2¹¹ = 5543229173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5543231221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5543231231) 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, 200961 + ... + 226873.

It is an arithmetic number, because the mean of its divisors is an integer number (755963208).

Almost surely, 2^5543231221 is an apocalyptic number.

It is an amenable number.

5543231221 is a deficient number, since it is larger than the sum of its proper divisors (504474443).

5543231221 is a wasteful number, since it uses less digits than its factorization.

5543231221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45371.

The product of its digits is 7200, while the sum is 28.

The square root of 5543231221 is about 74452.8791988597. The cubic root of 5543231221 is about 1769.7869896983.

Adding to 5543231221 its reverse (1221323455), we get a palindrome (6764554676).

The spelling of 5543231221 in words is "five billion, five hundred forty-three million, two hundred thirty-one thousand, two hundred twenty-one".