1121222200691 has 2 divisors, whose sum is σ = 1121222200692. Its totient is φ = 1121222200690.

The previous prime is 1121222200673. The next prime is 1121222200711. The reversal of 1121222200691 is 1960022221211.

It is a weak prime.

It is an emirp because it is prime and its reverse (1960022221211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1121222200691 - 2¹⁸ = 1121221938547 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121222200621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560611100345 + 560611100346.

It is an arithmetic number, because the mean of its divisors is an integer number (560611100346).

Almost surely, 2^{1121222200691} is an apocalyptic number.

1121222200691 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121222200691 is an equidigital number, since it uses as much as digits as its factorization.

1121222200691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 1121222200691 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-two million, two hundred thousand, six hundred ninety-one".