102212012 has 12 divisors (see below), whose sum is σ = 204424080. Its totient is φ = 43805136.

The previous prime is 102212009. The next prime is 102212021. The reversal of 102212012 is 210212201.

It is a happy number.

102212012 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 102211984 and 102212002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1825187 + ... + 1825242.

It is an arithmetic number, because the mean of its divisors is an integer number (17035340).

Almost surely, 2^102212012 is an apocalyptic number.

It is an amenable number.

102212012 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.

102212012 is a wasteful number, since it uses less digits than its factorization.

102212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3650440 (or 3650438 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 102212012 is about 10109.9956478725. The cubic root of 102212012 is about 467.5563709466.

Adding to 102212012 its reverse (210212201), we get a palindrome (312424213).

The spelling of 102212012 in words is "one hundred two million, two hundred twelve thousand, twelve".