102011111112 has 32 divisors (see below), whose sum is σ = 268450293600. Its totient is φ = 32214034944.

The previous prime is 102011111107. The next prime is 102011111129. The reversal of 102011111112 is 211111110201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111853833 + ... + 111854744.

It is an arithmetic number, because the mean of its divisors is an integer number (8389071675).

Almost surely, 2^102011111112 is an apocalyptic number.

102011111112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102011111112 is an abundant number, since it is smaller than the sum of its proper divisors (166439182488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102011111112 is a wasteful number, since it uses less digits than its factorization.

102011111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223708605 (or 223708601 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 102011111112 its reverse (211111110201), we get a palindrome (313122221313).

The spelling of 102011111112 in words is "one hundred two billion, eleven million, one hundred eleven thousand, one hundred twelve".