2211211020211 has 4 divisors (see below), whose sum is σ = 2341282256712. Its totient is φ = 2081139783712.

The previous prime is 2211211020173. The next prime is 2211211020217. The reversal of 2211211020211 is 1120201121122.

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

It is a cyclic number.

It is not a de Polignac number, because 2211211020211 - 2¹³ = 2211211012019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2211211020217) 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, 65035618225 + ... + 65035618258.

It is an arithmetic number, because the mean of its divisors is an integer number (585320564178).

Almost surely, 2^{2211211020211} is an apocalyptic number.

2211211020211 is a deficient number, since it is larger than the sum of its proper divisors (130071236501).

2211211020211 is a wasteful number, since it uses less digits than its factorization.

2211211020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130071236500.

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

Adding to 2211211020211 its reverse (1120201121122), we get a palindrome (3331412141333).

The spelling of 2211211020211 in words is "two trillion, two hundred eleven billion, two hundred eleven million, twenty thousand, two hundred eleven".