221111302213 has 8 divisors (see below), whose sum is σ = 236265721560. Its totient is φ = 206195535360.

The previous prime is 221111302211. The next prime is 221111302289. The reversal of 221111302213 is 312203111122.

221111302213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 124851275649 + 96260026564 = 353343^2 + 310258^2 .

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 221111302213 - 2¹ = 221111302211 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 (221111302211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59661208 + ... + 59664913.

It is an arithmetic number, because the mean of its divisors is an integer number (29533215195).

Almost surely, 2^221111302213 is an apocalyptic number.

It is an amenable number.

221111302213 is a deficient number, since it is larger than the sum of its proper divisors (15154419347).

221111302213 is a wasteful number, since it uses less digits than its factorization.

221111302213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119326247.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 221111302213 its reverse (312203111122), we get a palindrome (533314413335).

The spelling of 221111302213 in words is "two hundred twenty-one billion, one hundred eleven million, three hundred two thousand, two hundred thirteen".