111112210102 has 32 divisors (see below), whose sum is σ = 182402841600. Its totient is φ = 50567781600.

The previous prime is 111112210091. The next prime is 111112210127. The reversal of 111112210102 is 201012211111.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175549 + ... + 503032.

It is an arithmetic number, because the mean of its divisors is an integer number (5700088800).

Almost surely, 2^111112210102 is an apocalyptic number.

111112210102 is a deficient number, since it is larger than the sum of its proper divisors (71290631498).

111112210102 is a wasteful number, since it uses less digits than its factorization.

111112210102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678772.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111112210102 its reverse (201012211111), we get a palindrome (312124421213).

The spelling of 111112210102 in words is "one hundred eleven billion, one hundred twelve million, two hundred ten thousand, one hundred two".