11002120021091 has 2 divisors, whose sum is σ = 11002120021092. Its totient is φ = 11002120021090.

The previous prime is 11002120021051. The next prime is 11002120021127. The reversal of 11002120021091 is 19012002120011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11002120021091 - 2²² = 11002115826787 is a prime.

It is not a weakly prime, because it can be changed into another prime (11002120021001) 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, 5501060010545 + 5501060010546.

It is an arithmetic number, because the mean of its divisors is an integer number (5501060010546).

Almost surely, 2^{11002120021091} is an apocalyptic number.

11002120021091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11002120021091 is an equidigital number, since it uses as much as digits as its factorization.

11002120021091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 11002120021091 in words is "eleven trillion, two billion, one hundred twenty million, twenty-one thousand, ninety-one".