111002222111 has 32 divisors (see below), whose sum is σ = 125218771776. Its totient is φ = 97523712000.

The previous prime is 111002222083. The next prime is 111002222137. The reversal of 111002222111 is 111222200111.

It is a de Polignac number, because none of the positive numbers 2^k-111002222111 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111002222711) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24992651 + ... + 24997091.

It is an arithmetic number, because the mean of its divisors is an integer number (3913086618).

Almost surely, 2^111002222111 is an apocalyptic number.

111002222111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111002222111 is a deficient number, since it is larger than the sum of its proper divisors (14216549665).

111002222111 is a wasteful number, since it uses less digits than its factorization.

111002222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5003.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111002222111 its reverse (111222200111), we get a palindrome (222224422222).

The spelling of 111002222111 in words is "one hundred eleven billion, two million, two hundred twenty-two thousand, one hundred eleven".