212210211212 has 6 divisors (see below), whose sum is σ = 371367869628. Its totient is φ = 106105105604.

The previous prime is 212210211209. The next prime is 212210211263. The reversal of 212210211212 is 212112012212.

212210211212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26526276398 + ... + 26526276405.

It is an arithmetic number, because the mean of its divisors is an integer number (61894644938).

Almost surely, 2^212210211212 is an apocalyptic number.

It is an amenable number.

212210211212 is a deficient number, since it is larger than the sum of its proper divisors (159157658416).

212210211212 is a wasteful number, since it uses less digits than its factorization.

212210211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53052552807 (or 53052552805 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212210211212 its reverse (212112012212), we get a palindrome (424322223424).

The spelling of 212210211212 in words is "two hundred twelve billion, two hundred ten million, two hundred eleven thousand, two hundred twelve".