11220002011 has 4 divisors (see below), whose sum is σ = 11222276832. Its totient is φ = 11217727192.

The previous prime is 11220001981. The next prime is 11220002041. The reversal of 11220002011 is 11020002211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11020002211 = 2297 ⋅4797563.

It is an interprime number because it is at equal distance from previous prime (11220001981) and next prime (11220002041).

It is a cyclic number.

It is not a de Polignac number, because 11220002011 - 2¹¹ = 11219999963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11220002041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1129996 + ... + 1139881.

It is an arithmetic number, because the mean of its divisors is an integer number (2805569208).

Almost surely, 2^11220002011 is an apocalyptic number.

11220002011 is a deficient number, since it is larger than the sum of its proper divisors (2274821).

11220002011 is an equidigital number, since it uses as much as digits as its factorization.

11220002011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2274820.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11220002011 its reverse (11020002211), we get a palindrome (22240004222).

The spelling of 11220002011 in words is "eleven billion, two hundred twenty million, two thousand, eleven".