201211202011211 has 16 divisors (see below), whose sum is σ = 243507861467136. Its totient is φ = 162304709606016.

The previous prime is 201211202011201. The next prime is 201211202011291. The reversal of 201211202011211 is 112110202112102.

It is a cyclic number.

It is not a de Polignac number, because 201211202011211 - 2⁴² = 196813155500107 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 201211202011211.

It is not an unprimeable number, because it can be changed into a prime (201211202011201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87043691 + ... + 89325396.

It is an arithmetic number, because the mean of its divisors is an integer number (15219241341696).

Almost surely, 2^{201211202011211} is an apocalyptic number.

201211202011211 is a deficient number, since it is larger than the sum of its proper divisors (42296659455925).

201211202011211 is a wasteful number, since it uses less digits than its factorization.

201211202011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176378698.

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

Adding to 201211202011211 its reverse (112110202112102), we get a palindrome (313321404123313).

The spelling of 201211202011211 in words is "two hundred one trillion, two hundred eleven billion, two hundred two million, eleven thousand, two hundred eleven".