110221210111111 has 16 divisors (see below), whose sum is σ = 121433744304288. Its totient is φ = 99207444592000.

The previous prime is 110221210111093. The next prime is 110221210111163. The reversal of 110221210111111 is 111111012122011.

It is a cyclic number.

It is not a de Polignac number, because 110221210111111 - 2¹⁹ = 110221209586823 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 (110221210111171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72768585 + ... + 74267821.

It is an arithmetic number, because the mean of its divisors is an integer number (7589609019018).

Almost surely, 2^{110221210111111} is an apocalyptic number.

110221210111111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

110221210111111 is a deficient number, since it is larger than the sum of its proper divisors (11212534193177).

110221210111111 is a wasteful number, since it uses less digits than its factorization.

110221210111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565522.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 110221210111111 its reverse (111111012122011), we get a palindrome (221332222233122).

The spelling of 110221210111111 in words is "one hundred ten trillion, two hundred twenty-one billion, two hundred ten million, one hundred eleven thousand, one hundred eleven".