11332112231221 has 4 divisors (see below), whose sum is σ = 11332235174112. Its totient is φ = 11331989288332.

The previous prime is 11332112231149. The next prime is 11332112231243. The reversal of 11332112231221 is 12213221123311.

11332112231221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11332112231221 - 2¹⁷ = 11332112100149 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 (11332112211221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61333081 + ... + 61517566.

It is an arithmetic number, because the mean of its divisors is an integer number (2833058793528).

Almost surely, 2^{11332112231221} is an apocalyptic number.

It is an amenable number.

11332112231221 is a deficient number, since it is larger than the sum of its proper divisors (122942891).

11332112231221 is an equidigital number, since it uses as much as digits as its factorization.

11332112231221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122942890.

The product of its digits is 864, while the sum is 25.

Adding to 11332112231221 its reverse (12213221123311), we get a palindrome (23545333354532).

The spelling of 11332112231221 in words is "eleven trillion, three hundred thirty-two billion, one hundred twelve million, two hundred thirty-one thousand, two hundred twenty-one".