111102012220111 has 16 divisors (see below), whose sum is σ = 125558424295200. Its totient is φ = 97381462953600.

The previous prime is 111102012220109. The next prime is 111102012220181. The reversal of 111102012220111 is 111022210201111.

It is a cyclic number.

It is not a de Polignac number, because 111102012220111 - 2¹ = 111102012220109 is a prime.

It is a super-2 number, since 2×111102012220111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111102012220181) 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, 245388900 + ... + 245841241.

It is an arithmetic number, because the mean of its divisors is an integer number (7847401518450).

Almost surely, 2^{111102012220111} is an apocalyptic number.

111102012220111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111102012220111 is a deficient number, since it is larger than the sum of its proper divisors (14456412075089).

111102012220111 is a wasteful number, since it uses less digits than its factorization.

111102012220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491230890.

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

Adding to 111102012220111 its reverse (111022210201111), we get a palindrome (222124222421222).

The spelling of 111102012220111 in words is "one hundred eleven trillion, one hundred two billion, twelve million, two hundred twenty thousand, one hundred eleven".