11021221199 has 2 divisors, whose sum is σ = 11021221200. Its totient is φ = 11021221198.

The previous prime is 11021221147. The next prime is 11021221201. The reversal of 11021221199 is 99112212011.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11021221199 is a prime.

Together with 11021221201, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11021221139) 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, 5510610599 + 5510610600.

It is an arithmetic number, because the mean of its divisors is an integer number (5510610600).

Almost surely, 2^11021221199 is an apocalyptic number.

11021221199 is a deficient number, since it is larger than the sum of its proper divisors (1).

11021221199 is an equidigital number, since it uses as much as digits as its factorization.

11021221199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 29.

The spelling of 11021221199 in words is "eleven billion, twenty-one million, two hundred twenty-one thousand, one hundred ninety-nine".