102100120112 has 20 divisors (see below), whose sum is σ = 202643837256. Its totient is φ = 49804936320.

The previous prime is 102100120099. The next prime is 102100120117. The reversal of 102100120112 is 211021001201.

It is a junction number, because it is equal to n+sod(n) for n = 102100120093 and 102100120102.

It is not an unprimeable number, because it can be changed into a prime (102100120117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77819558 + ... + 77820869.

Almost surely, 2^102100120112 is an apocalyptic number.

It is an amenable number.

102100120112 is a deficient number, since it is larger than the sum of its proper divisors (100543717144).

102100120112 is a wasteful number, since it uses less digits than its factorization.

102100120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155640476 (or 155640470 counting only the distinct ones).

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

Adding to 102100120112 its reverse (211021001201), we get a palindrome (313121121313).

The spelling of 102100120112 in words is "one hundred two billion, one hundred million, one hundred twenty thousand, one hundred twelve".