100100212 has 12 divisors (see below), whose sum is σ = 176813280.
Its totient is φ = 49582136.
The previous prime is 100100197. The next prime is 100100239. The reversal of 100100212 is 212001001.
It is a junction number, because it is equal to n+sod(n) for n = 100100195 and 100100204.
It is a congruent number.
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, 116512 + ... + 117367.
It is an arithmetic number, because the mean of its divisors is an integer number (14734440).
Almost surely, 2100100212 is an apocalyptic number.
It is an amenable number.
100100212 is a deficient number, since it is larger than the sum of its proper divisors (76713068).
100100212 is a wasteful number, since it uses less digits than its factorization.
100100212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 233990 (or 233988 counting only the distinct ones).
The product of its (nonzero) digits is 4, while the sum is 7.
The square root of 100100212 is about 10005.0093453230.
The cubic root of 100100212 is about 464.3138792314.
Adding to 100100212 its reverse (212001001), we get a palindrome (312101213).
The spelling of 100100212 in words is "one hundred million, one hundred thousand, two hundred twelve".