2122021121191 has 2 divisors, whose sum is σ = 2122021121192. Its totient is φ = 2122021121190.

The previous prime is 2122021121153. The next prime is 2122021121201. The reversal of 2122021121191 is 1911211202212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2122021121191 - 2¹³ = 2122021112999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122021122191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061010560595 + 1061010560596.

It is an arithmetic number, because the mean of its divisors is an integer number (1061010560596).

Almost surely, 2^{2122021121191} is an apocalyptic number.

2122021121191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122021121191 is an equidigital number, since it uses as much as digits as its factorization.

2122021121191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 25.

The spelling of 2122021121191 in words is "two trillion, one hundred twenty-two billion, twenty-one million, one hundred twenty-one thousand, one hundred ninety-one".