212212200002112 has 42 divisors (see below), whose sum is σ = 608267955216038. Its totient is φ = 70737400000512.

The previous prime is 212212200002081. The next prime is 212212200002113. The reversal of 212212200002112 is 211200002212212.

It is a happy number.

212212200002112 is a `hidden beast` number, since 212 + 21 + 220 + 0 + 0 + 0 + 211 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 202255499382336 + 9956700619776 = 14221656^2 + 3155424^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (212212200002113) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 184211978593 + ... + 184211979744.

Almost surely, 2^{212212200002112} is an apocalyptic number.

It is an amenable number.

212212200002112 is an abundant number, since it is smaller than the sum of its proper divisors (396055755213926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212212200002112 is a wasteful number, since it uses less digits than its factorization.

212212200002112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368423958355 (or 368423958342 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212212200002112 its reverse (211200002212212), we get a palindrome (423412202214324).

The spelling of 212212200002112 in words is "two hundred twelve trillion, two hundred twelve billion, two hundred million, two thousand, one hundred twelve".