111220201122211 has 8 divisors (see below), whose sum is σ = 116111577818880. Its totient is φ = 106333467407112.

The previous prime is 111220201122203. The next prime is 111220201122227. The reversal of 111220201122211 is 112221102022111.

It is a happy number.

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 111220201122211 - 2³ = 111220201122203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111220201123211) 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, 1160696431 + ... + 1160792248.

It is an arithmetic number, because the mean of its divisors is an integer number (14513947227360).

Almost surely, 2^{111220201122211} is an apocalyptic number.

111220201122211 is a deficient number, since it is larger than the sum of its proper divisors (4891376696669).

111220201122211 is a wasteful number, since it uses less digits than its factorization.

111220201122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2321490785.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 111220201122211 its reverse (112221102022111), we get a palindrome (223441303144322).

The spelling of 111220201122211 in words is "one hundred eleven trillion, two hundred twenty billion, two hundred one million, one hundred twenty-two thousand, two hundred eleven".