212112020212 has 24 divisors (see below), whose sum is σ = 378188769672. Its totient is φ = 104076672000.

The previous prime is 212112020209. The next prime is 212112020221. The reversal of 212112020212 is 212020211212.

It is a happy number.

212112020212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 59484283236 + 152627736976 = 243894^2 + 390676^2 .

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 2277489 + ... + 2368792.

It is an arithmetic number, because the mean of its divisors is an integer number (15757865403).

Almost surely, 2^212112020212 is an apocalyptic number.

It is an amenable number.

212112020212 is a deficient number, since it is larger than the sum of its proper divisors (166076749460).

212112020212 is a wasteful number, since it uses less digits than its factorization.

212112020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4646499 (or 4646497 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212112020212 its reverse (212020211212), we get a palindrome (424132231424).

The spelling of 212112020212 in words is "two hundred twelve billion, one hundred twelve million, twenty thousand, two hundred twelve".