11219919 has 8 divisors (see below), whose sum is σ = 14990592. Its totient is φ = 7464600.

The previous prime is 11219903. The next prime is 11219933. The reversal of 11219919 is 91991211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11219919 - 2⁴ = 11219903 is a prime.

It is a super-2 number, since 2×11219919² = 251773164733122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11219919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11219939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2007 + ... + 5144.

It is an arithmetic number, because the mean of its divisors is an integer number (1873824).

Almost surely, 2^11219919 is an apocalyptic number.

11219919 is a deficient number, since it is larger than the sum of its proper divisors (3770673).

11219919 is an equidigital number, since it uses as much as digits as its factorization.

11219919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7677.

The product of its digits is 1458, while the sum is 33.

The square root of 11219919 is about 3349.6147539680. The cubic root of 11219919 is about 223.8703477496.

The spelling of 11219919 in words is "eleven million, two hundred nineteen thousand, nine hundred nineteen".