11220042011 has 2 divisors, whose sum is σ = 11220042012. Its totient is φ = 11220042010.

The previous prime is 11220041933. The next prime is 11220042019. The reversal of 11220042011 is 11024002211.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (11024002211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11220042011 - 2³⁰ = 10146300187 is a prime.

It is not a weakly prime, because it can be changed into another prime (11220042019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610021005 + 5610021006.

It is an arithmetic number, because the mean of its divisors is an integer number (5610021006).

Almost surely, 2^11220042011 is an apocalyptic number.

11220042011 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220042011 is an equidigital number, since it uses as much as digits as its factorization.

11220042011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11220042011 its reverse (11024002211), we get a palindrome (22244044222).

The spelling of 11220042011 in words is "eleven billion, two hundred twenty million, forty-two thousand, eleven".