11320302312221 has 16 divisors (see below), whose sum is σ = 13698824488704. Its totient is φ = 9132139785984.

The previous prime is 11320302312103. The next prime is 11320302312247. The reversal of 11320302312221 is 12221320302311.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11320302312221 is a prime.

It is a super-2 number, since 2×11320302312221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11320302312271) 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, 4373816 + ... + 6463038.

It is an arithmetic number, because the mean of its divisors is an integer number (856176530544).

Almost surely, 2^{11320302312221} is an apocalyptic number.

It is an amenable number.

11320302312221 is a deficient number, since it is larger than the sum of its proper divisors (2378522176483).

11320302312221 is a wasteful number, since it uses less digits than its factorization.

11320302312221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134780.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 11320302312221 its reverse (12221320302311), we get a palindrome (23541622614532).

The spelling of 11320302312221 in words is "eleven trillion, three hundred twenty billion, three hundred two million, three hundred twelve thousand, two hundred twenty-one".