100101212 has 12 divisors (see below), whose sum is σ = 175271040. Its totient is φ = 50023776.

The previous prime is 100101203. The next prime is 100101217. The reversal of 100101212 is 212101001.

It is a self number, because there is not a number n which added to its sum of digits gives 100101212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100101217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3368 + ... + 14544.

It is an arithmetic number, because the mean of its divisors is an integer number (14605920).

Almost surely, 2^100101212 is an apocalyptic number.

It is an amenable number.

100101212 is a deficient number, since it is larger than the sum of its proper divisors (75169828).

100101212 is a wasteful number, since it uses less digits than its factorization.

100101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13420 (or 13418 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 100101212 is about 10005.0593201640. The cubic root of 100101212 is about 464.3154253897.

Adding to 100101212 its reverse (212101001), we get a palindrome (312202213).

The spelling of 100101212 in words is "one hundred million, one hundred one thousand, two hundred twelve".