100612212 has 24 divisors (see below), whose sum is σ = 244969536. Its totient is φ = 32079168.

The previous prime is 100612199. The next prime is 100612219. The reversal of 100612212 is 212216001.

It is a junction number, because it is equal to n+sod(n) for n = 100612191 and 100612200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100612219) 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 7 ways as a sum of consecutive naturals, for example, 181993 + ... + 182544.

It is an arithmetic number, because the mean of its divisors is an integer number (10207064).

Almost surely, 2^100612212 is an apocalyptic number.

100612212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100612212 is an abundant number, since it is smaller than the sum of its proper divisors (144357324).

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

100612212 is a wasteful number, since it uses less digits than its factorization.

100612212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364567 (or 364565 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 100612212 is about 10030.5638924240. The cubic root of 100612212 is about 465.1041690545.

Adding to 100612212 its reverse (212216001), we get a palindrome (312828213).

The spelling of 100612212 in words is "one hundred million, six hundred twelve thousand, two hundred twelve".