2011222022191 has 2 divisors, whose sum is σ = 2011222022192. Its totient is φ = 2011222022190.

The previous prime is 2011222022153. The next prime is 2011222022213. The reversal of 2011222022191 is 1912202221102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2011222022191 - 2⁷ = 2011222022063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2011222022791) 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 as a sum of consecutive naturals, namely, 1005611011095 + 1005611011096.

It is an arithmetic number, because the mean of its divisors is an integer number (1005611011096).

Almost surely, 2^{2011222022191} is an apocalyptic number.

2011222022191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011222022191 is an equidigital number, since it uses as much as digits as its factorization.

2011222022191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

Adding to 2011222022191 its reverse (1912202221102), we get a palindrome (3923424243293).

It can be divided in two parts, 20 and 11222022191, that added together give a palindrome (11222022211).

The spelling of 2011222022191 in words is "two trillion, eleven billion, two hundred twenty-two million, twenty-two thousand, one hundred ninety-one".