211322012 has 24 divisors (see below), whose sum is σ = 404756352. Its totient is φ = 95740400.

The previous prime is 211322003. The next prime is 211322017. The reversal of 211322012 is 210223112.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211322017) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5963 + ... + 21405.

It is an arithmetic number, because the mean of its divisors is an integer number (16864848).

Almost surely, 2^211322012 is an apocalyptic number.

211322012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

211322012 is a deficient number, since it is larger than the sum of its proper divisors (193434340).

211322012 is a wasteful number, since it uses less digits than its factorization.

211322012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15769 (or 15767 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 211322012 is about 14536.9189307776. The cubic root of 211322012 is about 595.6368784882.

Adding to 211322012 its reverse (210223112), we get a palindrome (421545124).

It can be divided in two parts, 211 and 322012, that added together give a palindrome (322223).

The spelling of 211322012 in words is "two hundred eleven million, three hundred twenty-two thousand, twelve".