100030212 has 108 divisors (see below), whose sum is σ = 274594320. Its totient is φ = 30681504.

The previous prime is 100030187. The next prime is 100030213. The reversal of 100030212 is 212030001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 100030194 and 100030203.

It is not an unprimeable number, because it can be changed into a prime (100030213) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 558739 + ... + 558917.

It is an arithmetic number, because the mean of its divisors is an integer number (2542540).

Almost surely, 2^100030212 is an apocalyptic number.

100030212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100030212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137297160).

100030212 is an abundant number, since it is smaller than the sum of its proper divisors (174564108).

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

100030212 is a wasteful number, since it uses less digits than its factorization.

100030212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 100030212 is about 10001.5104859216. The cubic root of 100030212 is about 464.2056225486.

Adding to 100030212 its reverse (212030001), we get a palindrome (312060213).

The spelling of 100030212 in words is "one hundred million, thirty thousand, two hundred twelve".