201212201021211 has 12 divisors (see below), whose sum is σ = 293517468157680. Its totient is φ = 132813334006800.

The previous prime is 201212201021201. The next prime is 201212201021233. The reversal of 201212201021211 is 112120102212102.

201212201021211 is a `hidden beast` number, since 20 + 1 + 212 + 201 + 0 + 21 + 211 = 666.

It is not a de Polignac number, because 201212201021211 - 2⁶ = 201212201021147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201212201021201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110677777431 + ... + 110677779248.

It is an arithmetic number, because the mean of its divisors is an integer number (24459789013140).

Almost surely, 2^{201212201021211} is an apocalyptic number.

201212201021211 is a deficient number, since it is larger than the sum of its proper divisors (92305267136469).

201212201021211 is a wasteful number, since it uses less digits than its factorization.

201212201021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221355556786 (or 221355556783 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 201212201021211 its reverse (112120102212102), we get a palindrome (313332303233313).

The spelling of 201212201021211 in words is "two hundred one trillion, two hundred twelve billion, two hundred one million, twenty-one thousand, two hundred eleven".