211142012 has 6 divisors (see below), whose sum is σ = 369498528. Its totient is φ = 105571004.

The previous prime is 211141999. The next prime is 211142033. The reversal of 211142012 is 210241112.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26392748 + ... + 26392755.

It is an arithmetic number, because the mean of its divisors is an integer number (61583088).

Almost surely, 2^211142012 is an apocalyptic number.

It is an amenable number.

211142012 is a deficient number, since it is larger than the sum of its proper divisors (158356516).

211142012 is a wasteful number, since it uses less digits than its factorization.

211142012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52785507 (or 52785505 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 211142012 is about 14530.7264787415. The cubic root of 211142012 is about 595.4677131267.

Adding to 211142012 its reverse (210241112), we get a palindrome (421383124).

The spelling of 211142012 in words is "two hundred eleven million, one hundred forty-two thousand, twelve".