111220020110221 has 64 divisors (see below), whose sum is σ = 133379422156800. Its totient is φ = 91607054112000.

The previous prime is 111220020110207. The next prime is 111220020110239. The reversal of 111220020110221 is 122011020022111.

It is a cyclic number.

It is not a de Polignac number, because 111220020110221 - 2¹⁷ = 111220019979149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111220020110195 and 111220020110204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111220020110321) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 317403111 + ... + 317753323.

It is an arithmetic number, because the mean of its divisors is an integer number (2084053471200).

Almost surely, 2^{111220020110221} is an apocalyptic number.

111220020110221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111220020110221 is a deficient number, since it is larger than the sum of its proper divisors (22159402046579).

111220020110221 is a wasteful number, since it uses less digits than its factorization.

111220020110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350770.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111220020110221 its reverse (122011020022111), we get a palindrome (233231040132332).

The spelling of 111220020110221 in words is "one hundred eleven trillion, two hundred twenty billion, twenty million, one hundred ten thousand, two hundred twenty-one".