212012220212 has 24 divisors (see below), whose sum is σ = 400510610472. Its totient is φ = 97619356800.

The previous prime is 212012220179. The next prime is 212012220223. The reversal of 212012220212 is 212022210212.

It is a happy number.

212012220212 is digitally balanced in base 3, 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 58117637776 + 153894582436 = 241076^2 + 392294^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4820339 + ... + 4864122.

It is an arithmetic number, because the mean of its divisors is an integer number (16687942103).

Almost surely, 2^212012220212 is an apocalyptic number.

It is an amenable number.

212012220212 is a deficient number, since it is larger than the sum of its proper divisors (188498390260).

212012220212 is a wasteful number, since it uses less digits than its factorization.

212012220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9684899 (or 9684897 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 212012220212 its reverse (212022210212), we get a palindrome (424034430424).

The spelling of 212012220212 in words is "two hundred twelve billion, twelve million, two hundred twenty thousand, two hundred twelve".