212201222020011 has 48 divisors (see below), whose sum is σ = 366556085049024. Its totient is φ = 115754553038592.

The previous prime is 212201222020001. The next prime is 212201222020027. The reversal of 212201222020011 is 110020222102212.

It is a happy number.

212201222020011 is a `hidden beast` number, since 2 + 1 + 220 + 12 + 220 + 200 + 11 = 666.

It is not a de Polignac number, because 212201222020011 - 2¹⁰ = 212201222018987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212201222020001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 858691696 + ... + 858938781.

It is an arithmetic number, because the mean of its divisors is an integer number (7636585105188).

Almost surely, 2^{212201222020011} is an apocalyptic number.

212201222020011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

212201222020011 is a deficient number, since it is larger than the sum of its proper divisors (154354863029013).

212201222020011 is a wasteful number, since it uses less digits than its factorization.

212201222020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717630580 (or 1717630577 counting only the distinct ones).

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

Adding to 212201222020011 its reverse (110020222102212), we get a palindrome (322221444122223).

The spelling of 212201222020011 in words is "two hundred twelve trillion, two hundred one billion, two hundred twenty-two million, twenty thousand, eleven".