211022221222201 has 4 divisors (see below), whose sum is σ = 212285827337472. Its totient is φ = 209758615106932.

The previous prime is 211022221222159. The next prime is 211022221222237. The reversal of 211022221222201 is 102222122220112.

211022221222201 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 211022221222201 - 2⁷ = 211022221222073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211022221222291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631803057385 + ... + 631803057718.

It is an arithmetic number, because the mean of its divisors is an integer number (53071456834368).

Almost surely, 2^{211022221222201} is an apocalyptic number.

It is an amenable number.

211022221222201 is a deficient number, since it is larger than the sum of its proper divisors (1263606115271).

211022221222201 is a wasteful number, since it uses less digits than its factorization.

211022221222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263606115270.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 211022221222201 its reverse (102222122220112), we get a palindrome (313244343442313).

The spelling of 211022221222201 in words is "two hundred eleven trillion, twenty-two billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred one".