201121001022211 has 4 divisors (see below), whose sum is σ = 201121029598624. Its totient is φ = 201120972445800.

The previous prime is 201121001022191. The next prime is 201121001022251. The reversal of 201121001022211 is 112220100121102.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 201121001022211 - 2²¹ = 201120998925059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201121001022251) 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 3 ways as a sum of consecutive naturals, for example, 4532281 + ... + 20561701.

It is an arithmetic number, because the mean of its divisors is an integer number (50280257399656).

Almost surely, 2^{201121001022211} is an apocalyptic number.

201121001022211 is a deficient number, since it is larger than the sum of its proper divisors (28576413).

201121001022211 is a wasteful number, since it uses less digits than its factorization.

201121001022211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28576412.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 201121001022211 its reverse (112220100121102), we get a palindrome (313341101143313).

The spelling of 201121001022211 in words is "two hundred one trillion, one hundred twenty-one billion, one million, twenty-two thousand, two hundred eleven".