102102110120 has 32 divisors (see below), whose sum is σ = 230260340520. Its totient is φ = 40746516480.

The previous prime is 102102110107. The next prime is 102102110153. The reversal of 102102110120 is 21011201201.

It can be written as a sum of positive squares in 4 ways, for example, as 27408126916 + 74693983204 = 165554^2 + 273302^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2930201 + ... + 2964840.

Almost surely, 2^102102110120 is an apocalyptic number.

102102110120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102102110120 is an abundant number, since it is smaller than the sum of its proper divisors (128158230400).

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

102102110120 is a wasteful number, since it uses less digits than its factorization.

102102110120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5895485 (or 5895481 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102102110120 its reverse (21011201201), we get a palindrome (123113311321).

The spelling of 102102110120 in words is "one hundred two billion, one hundred two million, one hundred ten thousand, one hundred twenty".