105122212 has 48 divisors (see below), whose sum is σ = 210770560. Its totient is φ = 45474048.

The previous prime is 105122201. The next prime is 105122249. The reversal of 105122212 is 212221501.

It is a happy number.

It is a super-2 number, since 2×105122212² = 22101358911545888, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101248 + ... + 102280.

Almost surely, 2^105122212 is an apocalyptic number.

It is an amenable number.

105122212 is an abundant number, since it is smaller than the sum of its proper divisors (105648348).

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

105122212 is a wasteful number, since it uses less digits than its factorization.

105122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172 (or 1170 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 105122212 is about 10252.9123667376. The cubic root of 105122212 is about 471.9523616098.

Adding to 105122212 its reverse (212221501), we get a palindrome (317343713).

The spelling of 105122212 in words is "one hundred five million, one hundred twenty-two thousand, two hundred twelve".