11321213032221 has 8 divisors (see below), whose sum is σ = 15094971127680. Its totient is φ = 7547465145792.

The previous prime is 11321213032159. The next prime is 11321213032223. The reversal of 11321213032221 is 12223031212311.

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

It is not a de Polignac number, because 11321213032221 - 2¹⁷ = 11321212901149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11321213032191 and 11321213032200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11321213032223) 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, 586821 + ... + 4794453.

It is an arithmetic number, because the mean of its divisors is an integer number (1886871390960).

Almost surely, 2^{11321213032221} is an apocalyptic number.

It is an amenable number.

11321213032221 is a deficient number, since it is larger than the sum of its proper divisors (3773758095459).

11321213032221 is an equidigital number, since it uses as much as digits as its factorization.

11321213032221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5104515.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 11321213032221 its reverse (12223031212311), we get a palindrome (23544244244532).

The spelling of 11321213032221 in words is "eleven trillion, three hundred twenty-one billion, two hundred thirteen million, thirty-two thousand, two hundred twenty-one".