11552232354221 has 8 divisors (see below), whose sum is σ = 12611288429880. Its totient is φ = 10517522395392.

The previous prime is 11552232354209. The next prime is 11552232354227. The reversal of 11552232354221 is 12245323225511.

11552232354221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 202037664196 + 11350194690025 = 449486^2 + 3369005^2 .

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 11552232354221 - 2¹⁴ = 11552232337837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11552232354227) 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, 6086528216 + ... + 6086530113.

It is an arithmetic number, because the mean of its divisors is an integer number (1576411053735).

Almost surely, 2^{11552232354221} is an apocalyptic number.

It is an amenable number.

11552232354221 is a deficient number, since it is larger than the sum of its proper divisors (1059056075659).

11552232354221 is a wasteful number, since it uses less digits than its factorization.

11552232354221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12173058415.

The product of its digits is 144000, while the sum is 38.

Adding to 11552232354221 its reverse (12245323225511), we get a palindrome (23797555579732).

The spelling of 11552232354221 in words is "eleven trillion, five hundred fifty-two billion, two hundred thirty-two million, three hundred fifty-four thousand, two hundred twenty-one".