11320132122221 has 16 divisors (see below), whose sum is σ = 12267092199600. Its totient is φ = 10445905888704.

The previous prime is 11320132122203. The next prime is 11320132122239. The reversal of 11320132122221 is 12222123102311.

It is an interprime number because it is at equal distance from previous prime (11320132122203) and next prime (11320132122239).

It can be written as a sum of positive squares in 8 ways, for example, as 7322511768196 + 3997620354025 = 2706014^2 + 1999405^2 .

It is not a de Polignac number, because 11320132122221 - 2³⁰ = 11319058380397 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 (11320132122251) 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 15 ways as a sum of consecutive naturals, for example, 5823995 + ... + 7520583.

It is an arithmetic number, because the mean of its divisors is an integer number (766693262475).

Almost surely, 2^{11320132122221} is an apocalyptic number.

It is an amenable number.

11320132122221 is a deficient number, since it is larger than the sum of its proper divisors (946960077379).

11320132122221 is an equidigital number, since it uses as much as digits as its factorization.

11320132122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699665 (or 1699639 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 11320132122221 its reverse (12222123102311), we get a palindrome (23542255224532).

The spelling of 11320132122221 in words is "eleven trillion, three hundred twenty billion, one hundred thirty-two million, one hundred twenty-two thousand, two hundred twenty-one".