11021111102011 has 4 divisors (see below), whose sum is σ = 11022882706224. Its totient is φ = 11019339497800.

The previous prime is 11021111102009. The next prime is 11021111102107. The reversal of 11021111102011 is 11020111112011.

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 11021111102011 - 2¹ = 11021111102009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11021111101982 and 11021111102000.

It is not an unprimeable number, because it can be changed into a prime (11021111109011) 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, 885792775 + ... + 885805216.

It is an arithmetic number, because the mean of its divisors is an integer number (2755720676556).

Almost surely, 2^{11021111102011} is an apocalyptic number.

11021111102011 is a deficient number, since it is larger than the sum of its proper divisors (1771604213).

11021111102011 is an equidigital number, since it uses as much as digits as its factorization.

11021111102011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771604212.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 11021111102011 its reverse (11020111112011), we get a palindrome (22041222214022).

The spelling of 11021111102011 in words is "eleven trillion, twenty-one billion, one hundred eleven million, one hundred two thousand, eleven".