102100012 has 24 divisors (see below), whose sum is σ = 204431360. Its totient is φ = 43707600.

The previous prime is 102100007. The next prime is 102100067. The reversal of 102100012 is 210001201.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a junction number, because it is equal to n+sod(n) for n = 102099968 and 102100004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34387 + ... + 37237.

Almost surely, 2^102100012 is an apocalyptic number.

It is an amenable number.

102100012 is an abundant number, since it is smaller than the sum of its proper divisors (102331348).

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

102100012 is a wasteful number, since it uses less digits than its factorization.

102100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4141 (or 4139 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 102100012 is about 10104.4550570528. The cubic root of 102100012 is about 467.3855317560.

Adding to 102100012 its reverse (210001201), we get a palindrome (312101213).

The spelling of 102100012 in words is "one hundred two million, one hundred thousand, twelve".