105012212 has 12 divisors (see below), whose sum is σ = 186886560. Its totient is φ = 51616056.

The previous prime is 105012209. The next prime is 105012217. The reversal of 105012212 is 212210501.

It is a super-2 number, since 2×105012212² = 22055129338265888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105012217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222248 + ... + 222719.

It is an arithmetic number, because the mean of its divisors is an integer number (15573880).

Almost surely, 2^105012212 is an apocalyptic number.

It is an amenable number.

105012212 is a deficient number, since it is larger than the sum of its proper divisors (81874348).

105012212 is a wasteful number, since it uses less digits than its factorization.

105012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445030 (or 445028 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 105012212 is about 10247.5466332191. The cubic root of 105012212 is about 471.7876869985.

Adding to 105012212 its reverse (212210501), we get a palindrome (317222713).

The spelling of 105012212 in words is "one hundred five million, twelve thousand, two hundred twelve".