11223321012221 has 8 divisors (see below), whose sum is σ = 11391087741600. Its totient is φ = 11056329187632.

The previous prime is 11223321012217. The next prime is 11223321012251. The reversal of 11223321012221 is 12221012332211.

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 11223321012221 - 2² = 11223321012217 is a prime.

It is a super-2 number, since 2×11223321012221² (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 (11223321012251) 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, 193697015 + ... + 193754948.

It is an arithmetic number, because the mean of its divisors is an integer number (1423885967700).

Almost surely, 2^{11223321012221} is an apocalyptic number.

It is an amenable number.

11223321012221 is a deficient number, since it is larger than the sum of its proper divisors (167766729379).

11223321012221 is an equidigital number, since it uses as much as digits as its factorization.

11223321012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387452395.

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

Adding to 11223321012221 its reverse (12221012332211), we get a palindrome (23444333344432).

The spelling of 11223321012221 in words is "eleven trillion, two hundred twenty-three billion, three hundred twenty-one million, twelve thousand, two hundred twenty-one".