22119919 has 2 divisors, whose sum is σ = 22119920. Its totient is φ = 22119918.

The previous prime is 22119917. The next prime is 22119959. The reversal of 22119919 is 91991122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22119919 - 2¹ = 22119917 is a prime.

It is a super-2 number, since 2×22119919² = 978581633133122, which contains 22 as substring.

Together with 22119917, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22119913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11059959 + 11059960.

It is an arithmetic number, because the mean of its divisors is an integer number (11059960).

Almost surely, 2^22119919 is an apocalyptic number.

22119919 is a deficient number, since it is larger than the sum of its proper divisors (1).

22119919 is an equidigital number, since it uses as much as digits as its factorization.

22119919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2916, while the sum is 34.

The square root of 22119919 is about 4703.1817953381. The cubic root of 22119919 is about 280.7121286226.

The spelling of 22119919 in words is "twenty-two million, one hundred nineteen thousand, nine hundred nineteen".