11050154513221 has 16 divisors (see below), whose sum is σ = 11882031772464. Its totient is φ = 10239595905024.

The previous prime is 11050154513213. The next prime is 11050154513239. The reversal of 11050154513221 is 12231545105011.

It can be written as a sum of positive squares in 8 ways, for example, as 731861429121 + 10318293084100 = 855489^2 + 3212210^2 .

It is a cyclic number.

It is not a de Polignac number, because 11050154513221 - 2³ = 11050154513213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11050152513221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17042170 + ... + 17678683.

It is an arithmetic number, because the mean of its divisors is an integer number (742626985779).

Almost surely, 2^{11050154513221} is an apocalyptic number.

It is an amenable number.

11050154513221 is a deficient number, since it is larger than the sum of its proper divisors (831877259243).

11050154513221 is a wasteful number, since it uses less digits than its factorization.

11050154513221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34721160.

The product of its (nonzero) digits is 6000, while the sum is 31.

Adding to 11050154513221 its reverse (12231545105011), we get a palindrome (23281699618232).

The spelling of 11050154513221 in words is "eleven trillion, fifty billion, one hundred fifty-four million, five hundred thirteen thousand, two hundred twenty-one".