211100021021201 has 16 divisors (see below), whose sum is σ = 227997848736000. Its totient is φ = 194296408992768.

The previous prime is 211100021021143. The next prime is 211100021021251. The reversal of 211100021021201 is 102120120001112.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211100021021201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211100021021251) 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 15 ways as a sum of consecutive naturals, for example, 261455960 + ... + 262262118.

It is an arithmetic number, because the mean of its divisors is an integer number (14249865546000).

Almost surely, 2^{211100021021201} is an apocalyptic number.

It is an amenable number.

211100021021201 is a deficient number, since it is larger than the sum of its proper divisors (16897827714799).

211100021021201 is a wasteful number, since it uses less digits than its factorization.

211100021021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864568.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 211100021021201 its reverse (102120120001112), we get a palindrome (313220141022313).

The spelling of 211100021021201 in words is "two hundred eleven trillion, one hundred billion, twenty-one million, twenty-one thousand, two hundred one".