11222113232221 has 8 divisors (see below), whose sum is σ = 11506542493824. Its totient is φ = 10939586508000.

The previous prime is 11222113232219. The next prime is 11222113232353. The reversal of 11222113232221 is 12223231122211.

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

It is a cyclic number.

It is not a de Polignac number, because 11222113232221 - 2¹ = 11222113232219 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 (11222113232021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475622400 + ... + 475645993.

It is an arithmetic number, because the mean of its divisors is an integer number (1438317811728).

Almost surely, 2^{11222113232221} is an apocalyptic number.

It is an amenable number.

11222113232221 is a deficient number, since it is larger than the sum of its proper divisors (284429261603).

11222113232221 is an equidigital number, since it uses as much as digits as its factorization.

11222113232221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951268691.

The product of its digits is 1152, while the sum is 25.

Adding to 11222113232221 its reverse (12223231122211), we get a palindrome (23445344354432).

The spelling of 11222113232221 in words is "eleven trillion, two hundred twenty-two billion, one hundred thirteen million, two hundred thirty-two thousand, two hundred twenty-one".