11220687719 has 2 divisors, whose sum is σ = 11220687720. Its totient is φ = 11220687718.

The previous prime is 11220687707. The next prime is 11220687767. The reversal of 11220687719 is 91778602211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11220687719 - 2¹² = 11220683623 is a prime.

It is a super-2 number, since 2×11220687719² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11220687719.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11220687019) 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 as a sum of consecutive naturals, namely, 5610343859 + 5610343860.

It is an arithmetic number, because the mean of its divisors is an integer number (5610343860).

Almost surely, 2^11220687719 is an apocalyptic number.

11220687719 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220687719 is an equidigital number, since it uses as much as digits as its factorization.

11220687719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 44.

The spelling of 11220687719 in words is "eleven billion, two hundred twenty million, six hundred eighty-seven thousand, seven hundred nineteen".