222111112110111 has 96 divisors (see below), whose sum is σ = 379818462786048. Its totient is φ = 122429275234560.

The previous prime is 222111112110089. The next prime is 222111112110127. The reversal of 222111112110111 is 111011211111222.

222111112110111 is a `hidden beast` number, since 22 + 211 + 111 + 211 + 0 + 111 = 666.

It is not a de Polignac number, because 222111112110111 - 2³³ = 222102522175519 is a prime.

It is a super-2 number, since 2×222111112110111² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222111112110131) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 129101016 + ... + 130810146.

It is an arithmetic number, because the mean of its divisors is an integer number (3956442320688).

Almost surely, 2^{222111112110111} is an apocalyptic number.

222111112110111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

222111112110111 is a deficient number, since it is larger than the sum of its proper divisors (157707350675937).

222111112110111 is a wasteful number, since it uses less digits than its factorization.

222111112110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709661 (or 1709658 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 18.

Adding to 222111112110111 its reverse (111011211111222), we get a palindrome (333122323221333).

The spelling of 222111112110111 in words is "two hundred twenty-two trillion, one hundred eleven billion, one hundred twelve million, one hundred ten thousand, one hundred eleven".