11219999999999 has 4 divisors (see below), whose sum is σ = 12822857142864. Its totient is φ = 9617142857136.

The previous prime is 11219999999993. The next prime is 11220000000007. The reversal of 11219999999999 is 99999999991211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11219999999999 is a prime.

It is a super-9 number, since 9×11219999999999⁹ (a number of 119 digits) contains 999999999 as substring.

It is a Duffinian number.

11219999999999 is a modest number, since divided by 9999999 gives 1121999 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11219999999993) 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, 801428571422 + ... + 801428571435.

It is an arithmetic number, because the mean of its divisors is an integer number (3205714285716).

Almost surely, 2^{11219999999999} is an apocalyptic number.

11219999999999 is a deficient number, since it is larger than the sum of its proper divisors (1602857142865).

11219999999999 is an equidigital number, since it uses as much as digits as its factorization.

11219999999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602857142864.

The product of its digits is 6973568802, while the sum is 95.

The spelling of 11219999999999 in words is "eleven trillion, two hundred nineteen billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".