111000102222111 has 128 divisors (see below), whose sum is σ = 159901037798400. Its totient is φ = 68288949780480.

The previous prime is 111000102222109. The next prime is 111000102222127. The reversal of 111000102222111 is 111222201000111.

It is a happy number.

It is not a de Polignac number, because 111000102222111 - 2¹ = 111000102222109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111000102222511) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 53339788591 + ... + 53339790671.

It is an arithmetic number, because the mean of its divisors is an integer number (1249226857800).

Almost surely, 2^{111000102222111} is an apocalyptic number.

111000102222111 is a deficient number, since it is larger than the sum of its proper divisors (48900935576289).

111000102222111 is a wasteful number, since it uses less digits than its factorization.

111000102222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2889.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111000102222111 its reverse (111222201000111), we get a palindrome (222222303222222).

The spelling of 111000102222111 in words is "one hundred eleven trillion, one hundred two million, two hundred twenty-two thousand, one hundred eleven".