11001220019 has 2 divisors, whose sum is σ = 11001220020. Its totient is φ = 11001220018.

The previous prime is 11001220007. The next prime is 11001220033. The reversal of 11001220019 is 91002210011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11001220019 - 2⁸ = 11001219763 is a prime.

It is a super-2 number, since 2×11001220019² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11001219979 and 11001220006.

It is not a weakly prime, because it can be changed into another prime (11001220519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500610009 + 5500610010.

It is an arithmetic number, because the mean of its divisors is an integer number (5500610010).

Almost surely, 2^11001220019 is an apocalyptic number.

11001220019 is a deficient number, since it is larger than the sum of its proper divisors (1).

11001220019 is an equidigital number, since it uses as much as digits as its factorization.

11001220019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 17.

It can be divided in two parts, 110012 and 20019, that added together give a palindrome (130031).

The spelling of 11001220019 in words is "eleven billion, one million, two hundred twenty thousand, nineteen".