11320021013221 has 8 divisors (see below), whose sum is σ = 12020446120320. Its totient is φ = 10623433852608.

The previous prime is 11320021013107. The next prime is 11320021013267. The reversal of 11320021013221 is 12231012002311.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11320021013221 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 (11320021113221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 959480541 + ... + 959492338.

It is an arithmetic number, because the mean of its divisors is an integer number (1502555765040).

Almost surely, 2^{11320021013221} is an apocalyptic number.

It is an amenable number.

11320021013221 is a deficient number, since it is larger than the sum of its proper divisors (700425107099).

11320021013221 is a wasteful number, since it uses less digits than its factorization.

11320021013221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918973243.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 11320021013221 its reverse (12231012002311), we get a palindrome (23551033015532).

The spelling of 11320021013221 in words is "eleven trillion, three hundred twenty billion, twenty-one million, thirteen thousand, two hundred twenty-one".