212012106 has 32 divisors (see below), whose sum is σ = 431308800. Its totient is φ = 69462960.

The previous prime is 212012077. The next prime is 212012123. The reversal of 212012106 is 601210212.

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 15 ways as a sum of consecutive naturals, for example, 203535 + ... + 204573.

It is an arithmetic number, because the mean of its divisors is an integer number (13478400).

Almost surely, 2^212012106 is an apocalyptic number.

212012106 is an abundant number, since it is smaller than the sum of its proper divisors (219296694).

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

212012106 is a wasteful number, since it uses less digits than its factorization.

212012106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594.

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

The square root of 212012106 is about 14560.6354943732. The cubic root of 212012106 is about 596.2845453749.

Adding to 212012106 its reverse (601210212), we get a palindrome (813222318).

The spelling of 212012106 in words is "two hundred twelve million, twelve thousand, one hundred six".