100100012 has 24 divisors (see below), whose sum is σ = 185812704. Its totient is φ = 47021312.

The previous prime is 100099981. The next prime is 100100051. The reversal of 100100012 is 210001001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 100099969 and 100100005.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53273 + ... + 55119.

It is an arithmetic number, because the mean of its divisors is an integer number (7742196).

Almost surely, 2^100100012 is an apocalyptic number.

It is an amenable number.

100100012 is a deficient number, since it is larger than the sum of its proper divisors (85712692).

100100012 is a wasteful number, since it uses less digits than its factorization.

100100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2665 (or 2663 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 100100012 is about 10004.9993503248. Note that the first 3 decimals coincide. The cubic root of 100100012 is about 464.3135699985.

Adding to 100100012 its reverse (210001001), we get a palindrome (310101013).

The spelling of 100100012 in words is "one hundred million, one hundred thousand, twelve".