11021021211199 has 4 divisors (see below), whose sum is σ = 11021819907600. Its totient is φ = 11020222514800.

The previous prime is 11021021211149. The next prime is 11021021211203. The reversal of 11021021211199 is 99111212012011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11021021211199 - 2¹¹ = 11021021209151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11021021211199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021021211149) 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 in 3 ways as a sum of consecutive naturals, for example, 399327502 + ... + 399355099.

It is an arithmetic number, because the mean of its divisors is an integer number (2755454976900).

Almost surely, 2^{11021021211199} is an apocalyptic number.

11021021211199 is a deficient number, since it is larger than the sum of its proper divisors (798696401).

11021021211199 is an equidigital number, since it uses as much as digits as its factorization.

11021021211199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798696400.

The product of its (nonzero) digits is 648, while the sum is 31.

The spelling of 11021021211199 in words is "eleven trillion, twenty-one billion, twenty-one million, two hundred eleven thousand, one hundred ninety-nine".