105912212 has 12 divisors (see below), whose sum is σ = 211824480. Its totient is φ = 45390936.

The previous prime is 105912199. The next prime is 105912221. The reversal of 105912212 is 212219501.

105912212 is an admirable number.

It is a super-2 number, since 2×105912212² = 22434793301465888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1891262 + ... + 1891317.

It is an arithmetic number, because the mean of its divisors is an integer number (17652040).

Almost surely, 2^105912212 is an apocalyptic number.

It is an amenable number.

105912212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

105912212 is a wasteful number, since it uses less digits than its factorization.

105912212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3782590 (or 3782588 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 105912212 is about 10291.3658957400. The cubic root of 105912212 is about 473.1316628588.

The spelling of 105912212 in words is "one hundred five million, nine hundred twelve thousand, two hundred twelve".