111220221222211 has 8 divisors (see below), whose sum is σ = 111263272929200. Its totient is φ = 111177174968352.

The previous prime is 111220221222203. The next prime is 111220221222283. The reversal of 111220221222211 is 112222122022111.

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 111220221222211 - 2³ = 111220221222203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111220221223211) 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, 39674740 + ... + 42385438.

It is an arithmetic number, because the mean of its divisors is an integer number (13907909116150).

Almost surely, 2^{111220221222211} is an apocalyptic number.

111220221222211 is a deficient number, since it is larger than the sum of its proper divisors (43051706989).

111220221222211 is a wasteful number, since it uses less digits than its factorization.

111220221222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2726565.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 111220221222211 its reverse (112222122022111), we get a palindrome (223442343244322).

The spelling of 111220221222211 in words is "one hundred eleven trillion, two hundred twenty billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred eleven".