11110221321 has 16 divisors (see below), whose sum is σ = 14933459520. Its totient is φ = 7347075840.

The previous prime is 11110221313. The next prime is 11110221341. The reversal of 11110221321 is 12312201111.

It is not a de Polignac number, because 11110221321 - 2³ = 11110221313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11110221321.

It is not an unprimeable number, because it can be changed into a prime (11110221341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232965 + ... + 276573.

It is an arithmetic number, because the mean of its divisors is an integer number (933341220).

Almost surely, 2^11110221321 is an apocalyptic number.

It is an amenable number.

11110221321 is a deficient number, since it is larger than the sum of its proper divisors (3823238199).

11110221321 is a wasteful number, since it uses less digits than its factorization.

11110221321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44296.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 11110221321 its reverse (12312201111), we get a palindrome (23422422432).

The spelling of 11110221321 in words is "eleven billion, one hundred ten million, two hundred twenty-one thousand, three hundred twenty-one".