212333021212 has 24 divisors (see below), whose sum is σ = 401077661600. Its totient is φ = 97776611136.

The previous prime is 212333021177. The next prime is 212333021227. The reversal of 212333021212 is 212120333212.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 4627887 + ... + 4673542.

Almost surely, 2^212333021212 is an apocalyptic number.

It is an amenable number.

212333021212 is a deficient number, since it is larger than the sum of its proper divisors (188744640388).

212333021212 is a wasteful number, since it uses less digits than its factorization.

212333021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9301885 (or 9301883 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 212333021212 its reverse (212120333212), we get a palindrome (424453354424).

The spelling of 212333021212 in words is "two hundred twelve billion, three hundred thirty-three million, twenty-one thousand, two hundred twelve".