211110212021201 has 16 divisors (see below), whose sum is σ = 233248785850368. Its totient is φ = 190051800153600.

The previous prime is 211110212021117. The next prime is 211110212021209. The reversal of 211110212021201 is 102120212011112.

It is a cyclic number.

It is not a de Polignac number, because 211110212021201 - 2²² = 211110207826897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211110212021201.

It is not an unprimeable number, because it can be changed into a prime (211110212021209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53859821 + ... + 57646341.

It is an arithmetic number, because the mean of its divisors is an integer number (14578049115648).

Almost surely, 2^{211110212021201} is an apocalyptic number.

It is an amenable number.

211110212021201 is a deficient number, since it is larger than the sum of its proper divisors (22138573829167).

211110212021201 is a wasteful number, since it uses less digits than its factorization.

211110212021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3929152.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 211110212021201 its reverse (102120212011112), we get a palindrome (313230424032313).

The spelling of 211110212021201 in words is "two hundred eleven trillion, one hundred ten billion, two hundred twelve million, twenty-one thousand, two hundred one".