211211120201 has 4 divisors (see below), whose sum is σ = 211698906132. Its totient is φ = 210723334272.

The previous prime is 211211120189. The next prime is 211211120243. The reversal of 211211120201 is 102021112112.

211211120201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10130623801 + 201080496400 = 100651^2 + 448420^2 .

It is a cyclic number.

It is not a de Polignac number, because 211211120201 - 2³⁰ = 210137378377 is a prime.

It is a super-2 number, since 2×211211120201² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211211120501) 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 3 ways as a sum of consecutive naturals, for example, 243892316 + ... + 243893181.

It is an arithmetic number, because the mean of its divisors is an integer number (52924726533).

Almost surely, 2^211211120201 is an apocalyptic number.

It is an amenable number.

211211120201 is a deficient number, since it is larger than the sum of its proper divisors (487785931).

211211120201 is an equidigital number, since it uses as much as digits as its factorization.

211211120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487785930.

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

Adding to 211211120201 its reverse (102021112112), we get a palindrome (313232232313).

It can be divided in two parts, 2112111 and 20201, that added together give a palindrome (2132312).

The spelling of 211211120201 in words is "two hundred eleven billion, two hundred eleven million, one hundred twenty thousand, two hundred one".