100000012 has 12 divisors (see below), whose sum is σ = 200000080. Its totient is φ = 42857136.

The previous prime is 100000007. The next prime is 100000037. The reversal of 100000012 is 210000001.

100000012 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (4).

It is a junction number, because it is equal to n+sod(n) for n = 99999947 and 100000010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1785687 + ... + 1785742.

Almost surely, 2^100000012 is an apocalyptic number.

It is an amenable number.

100000012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

100000012 is a wasteful number, since it uses less digits than its factorization.

100000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3571440 (or 3571438 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 4.

The square root of 100000012 is about 10000.0006000000. Note that the first 3 decimals coincide. The cubic root of 100000012 is about 464.1589019276.

Adding to 100000012 its reverse (210000001), we get a palindrome (310000013).

It can be divided in two parts, 10000001 and 2, that multiplied together give a palindrome (20000002).

The spelling of 100000012 in words is "one hundred million, twelve", and thus it is an aban number.