11011211201611 has 2 divisors, whose sum is σ = 11011211201612. Its totient is φ = 11011211201610.

The previous prime is 11011211201581. The next prime is 11011211201719. The reversal of 11011211201611 is 11610211211011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11011211201611 - 2⁵ = 11011211201579 is a prime.

It is not a weakly prime, because it can be changed into another prime (11011211201911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505605600805 + 5505605600806.

It is an arithmetic number, because the mean of its divisors is an integer number (5505605600806).

Almost surely, 2^{11011211201611} is an apocalyptic number.

11011211201611 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011211201611 is an equidigital number, since it uses as much as digits as its factorization.

11011211201611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 19.

Adding to 11011211201611 its reverse (11610211211011), we get a palindrome (22621422412622).

The spelling of 11011211201611 in words is "eleven trillion, eleven billion, two hundred eleven million, two hundred one thousand, six hundred eleven".