100120012 has 24 divisors (see below), whose sum is σ = 183458016. Its totient is φ = 47718528.

The previous prime is 100120003. The next prime is 100120037. The reversal of 100120012 is 210021001.

It is a junction number, because it is equal to n+sod(n) for n = 100119977 and 100120004.

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, 27448 + ... + 30880.

It is an arithmetic number, because the mean of its divisors is an integer number (7644084).

Almost surely, 2^100120012 is an apocalyptic number.

It is an amenable number.

100120012 is a deficient number, since it is larger than the sum of its proper divisors (83338004).

100120012 is a wasteful number, since it uses less digits than its factorization.

100120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3777 (or 3775 counting only the distinct ones).

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

The square root of 100120012 is about 10005.9988007195. The cubic root of 100120012 is about 464.3444912502.

Adding to 100120012 its reverse (210021001), we get a palindrome (310141013).

The spelling of 100120012 in words is "one hundred million, one hundred twenty thousand, twelve".