220111244402221 has 8 divisors (see below), whose sum is σ = 231929847008000. Its totient is φ = 208316021823360.

The previous prime is 220111244402219. The next prime is 220111244402233. The reversal of 220111244402221 is 122204442111022.

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 220111244402221 - 2¹ = 220111244402219 is a prime.

It is a super-4 number, since 4×220111244402221⁴ (a number of 58 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220111244402221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220111244402321) 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, 5844987396 + ... + 5845025053.

It is an arithmetic number, because the mean of its divisors is an integer number (28991230876000).

Almost surely, 2^{220111244402221} is an apocalyptic number.

It is an amenable number.

220111244402221 is a deficient number, since it is larger than the sum of its proper divisors (11818602605779).

220111244402221 is a wasteful number, since it uses less digits than its factorization.

220111244402221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11690013459.

The product of its (nonzero) digits is 4096, while the sum is 28.

Adding to 220111244402221 its reverse (122204442111022), we get a palindrome (342315686513243).

The spelling of 220111244402221 in words is "two hundred twenty trillion, one hundred eleven billion, two hundred forty-four million, four hundred two thousand, two hundred twenty-one".