102112110 has 32 divisors (see below), whose sum is σ = 272299680. Its totient is φ = 27229824.

The previous prime is 102112063. The next prime is 102112121. The reversal of 102112110 is 11211201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 102112092 and 102112101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188827 + ... + 189366.

It is an arithmetic number, because the mean of its divisors is an integer number (8509365).

Almost surely, 2^102112110 is an apocalyptic number.

102112110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102112110 is an abundant number, since it is smaller than the sum of its proper divisors (170187570).

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

102112110 is a wasteful number, since it uses less digits than its factorization.

102112110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378209 (or 378203 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 102112110 is about 10105.0536861513. The cubic root of 102112110 is about 467.4039914563.

Adding to 102112110 its reverse (11211201), we get a palindrome (113323311).

Subtracting from 102112110 its reverse (11211201), we obtain a palindrome (90900909).

It can be divided in two parts, 10211 and 2110, that added together give a palindrome (12321).

The spelling of 102112110 in words is "one hundred two million, one hundred twelve thousand, one hundred ten".