111223200213221 has 8 divisors (see below), whose sum is σ = 117765907037784. Its totient is φ = 104680511792640.

The previous prime is 111223200213163. The next prime is 111223200213241. The reversal of 111223200213221 is 122312002322111.

It can be written as a sum of positive squares in 4 ways, for example, as 5873298933121 + 105349901280100 = 2423489^2 + 10264010^2 .

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 111223200213221 - 2¹⁴ = 111223200196837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111223200213241) 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 7 ways as a sum of consecutive naturals, for example, 8988131 + ... + 17413583.

It is an arithmetic number, because the mean of its divisors is an integer number (14720738379723).

Almost surely, 2^{111223200213221} is an apocalyptic number.

It is an amenable number.

111223200213221 is a deficient number, since it is larger than the sum of its proper divisors (6542706824563).

111223200213221 is an equidigital number, since it uses as much as digits as its factorization.

111223200213221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9201991.

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

Adding to 111223200213221 its reverse (122312002322111), we get a palindrome (233535202535332).

The spelling of 111223200213221 in words is "one hundred eleven trillion, two hundred twenty-three billion, two hundred million, two hundred thirteen thousand, two hundred twenty-one".