211200111221212 has 12 divisors (see below), whose sum is σ = 369601987812736. Its totient is φ = 105599543274720.

The previous prime is 211200111221167. The next prime is 211200111221221. The reversal of 211200111221212 is 212122111002112.

It is a happy number.

211200111221212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 211200111221212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127155708 + ... + 128805955.

Almost surely, 2^{211200111221212} is an apocalyptic number.

It is an amenable number.

211200111221212 is a deficient number, since it is larger than the sum of its proper divisors (158401876591524).

211200111221212 is a wasteful number, since it uses less digits than its factorization.

211200111221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256167948 (or 256167946 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 211200111221212 its reverse (212122111002112), we get a palindrome (423322222223324).

The spelling of 211200111221212 in words is "two hundred eleven trillion, two hundred billion, one hundred eleven million, two hundred twenty-one thousand, two hundred twelve".